diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80824c8..f894b17 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.52.30 - 2026-09-09
+
+- Allowed season/series `0` in search and watchlist auto-download settings so Jellyfin specials finalize under `Season 00` with `S00E..` filenames.
+
 ## 0.52.29 - 2026-09-07
 
 - Added retry and exponential backoff for temporary HLS segment network failures, including DNS resolution, connection, and socket timeout errors.
diff --git a/README.md b/README.md
index f36d9d1..b167a2a 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ Kaizoku is a local web app for searching, tracking, and downloading anime from A
 - Monitor active Queue jobs with per-episode progress, segment counts, and live downloader output.
 - Open result actions in a floating window for watchlist, media type, subbed/dubbed mode, library name, season, episode range, and download folder choices.
 - Fall back across the other configured providers when an episode or stream cannot be resolved on the primary provider.
-- Save files with Jellyfin-friendly layout: `TV/Series Name/Season 01/Series Name - S01E01.mp4`.
+- Save files with Jellyfin-friendly layout: `TV/Series Name/Season 01/Series Name - S01E01.mp4`, including Season 00 for specials.
 - Save English external subtitles when the provider exposes usable subtitle tracks.
 - Manage focused watchlists for `Watching`, `Planned`, `Finished`, and `Dropped`, with provider source tags and title links back to the original provider page.
 - Periodically refresh selected watchlists with a single visible advancing progress bar and auto-download newly available episodes.
diff --git a/VERSION b/VERSION
index 819b47c..f0b8ff5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.52.29
+0.52.30
diff --git a/app.py b/app.py
index 7247718..5392902 100644
--- a/app.py
+++ b/app.py
@@ -1048,7 +1048,7 @@ def watchlist_source_season_dir(item, config):
     source_root = watchlist_source_library_dir(item, config)
     if normalize_media_type(item.get("media_type")) == "movie":
         return source_root
-    season = normalize_season((item or {}).get("auto_download_series") or "1")
+    season = normalize_season((item or {}).get("auto_download_series"))
     return source_root / f"Season {int(season):02d}"
 
 
@@ -1145,7 +1145,7 @@ def watchlist_downloaded_episode_values_from_filesystem(item, config, mode):
     season_dir = watchlist_source_season_dir(item, config)
     if not season_dir.exists() or not season_dir.is_dir():
         return []
-    season = normalize_season((item or {}).get("auto_download_series") or "1")
+    season = normalize_season((item or {}).get("auto_download_series"))
     pattern = re.compile(rf"\bS{int(season):02d}E([0-9][0-9A-Za-z.\-]*)\b", re.IGNORECASE)
     values = []
     seen = set()
@@ -1703,7 +1703,7 @@ class WatchlistStore:
         item["auto_download_quality"] = quality if quality in QUALITY_CHOICES else defaults["auto_download_quality"]
         item["auto_download_name"] = sanitize_path_component(item.get("auto_download_name") or defaults["auto_download_name"], defaults["auto_download_name"])
         item["auto_download_source_name"] = str(item.get("auto_download_source_name") or defaults["auto_download_source_name"]).strip() or defaults["auto_download_source_name"]
-        item["auto_download_series"] = normalize_season(item.get("auto_download_series") or defaults["auto_download_series"])
+        item["auto_download_series"] = normalize_season(item.get("auto_download_series"))
         item["auto_download_offset"] = normalize_episode_offset(item.get("auto_download_offset"))
         item["downloaded_sub_episodes"] = decode_episode_values(item.get("downloaded_sub_episodes_json"))
         item["downloaded_dub_episodes"] = decode_episode_values(item.get("downloaded_dub_episodes_json"))
@@ -2027,7 +2027,10 @@ class WatchlistStore:
                 "downloaded_sub_episodes_json": None,
                 "downloaded_dub_episodes_json": None,
             }
-            item["auto_download_series"] = normalize_season(payload.get("auto_download_series") or item.get("auto_download_series") or "1")
+            requested_series = payload.get("auto_download_series")
+            if requested_series is None or str(requested_series).strip() == "":
+                requested_series = item.get("auto_download_series")
+            item["auto_download_series"] = normalize_season(requested_series)
             requested_mode = str(payload.get("auto_download_mode") or item.get("auto_download_mode") or "").strip().lower()
             if requested_mode in MODE_CHOICES:
                 item["auto_download_mode"] = requested_mode
@@ -2574,7 +2577,10 @@ class WatchlistStore:
         normalized_source_name = str(source_name or existing.get("auto_download_source_name") or defaults["auto_download_source_name"]).strip()
         if not normalized_source_name:
             normalized_source_name = defaults["auto_download_source_name"]
-        normalized_series = normalize_season(series or existing.get("auto_download_series") or defaults["auto_download_series"])
+        requested_series = series
+        if requested_series is None or str(requested_series).strip() == "":
+            requested_series = existing.get("auto_download_series")
+        normalized_series = normalize_season(requested_series)
         normalized_offset = (
             normalize_episode_offset(existing.get("auto_download_offset"))
             if episode_offset is None
@@ -2825,7 +2831,7 @@ def download_watchlist_item(show_id, mode):
         "title": item["title"],
         "anime_name": item.get("auto_download_name") or item["title"],
         "media_type": item.get("media_type") or "tv",
-        "season": item.get("auto_download_series") or "1",
+        "season": normalize_season(item.get("auto_download_series")),
         "episode_offset": item.get("auto_download_offset"),
         "mode": normalized_mode,
         "quality": item.get("auto_download_quality")
@@ -2878,7 +2884,7 @@ def queue_watchlist_auto_download(item, refresh_source="manual"):
         item.get("auto_download_name") or item.get("title") or "Anime",
         sanitize_path_component(item.get("title") or "Anime", "Anime"),
     )
-    series = normalize_season(item.get("auto_download_series") or "1")
+    series = normalize_season(item.get("auto_download_series"))
     episode_offset = normalize_episode_offset(item.get("auto_download_offset"))
     jobs = []
     for episode_spec in specs:
diff --git a/app_support.py b/app_support.py
index bbab2ec..b2366c3 100644
--- a/app_support.py
+++ b/app_support.py
@@ -961,12 +961,14 @@ def sanitize_path_component(value, fallback="Anime"):
 
 
 def normalize_season(value):
-    text = str(value or "1").strip()
+    text = "1" if value is None else str(value).strip()
+    if not text:
+        text = "1"
     if not re.match(r"^[0-9]+$", text):
-        raise ValueError("Season must be a positive number")
+        raise ValueError("Season must be a non-negative number")
     number = int(text, 10)
-    if number < 1:
-        raise ValueError("Season must be a positive number")
+    if number < 0:
+        raise ValueError("Season must be a non-negative number")
     return str(number)
 
 
@@ -1001,7 +1003,8 @@ def job_staging_dir(job):
 
 
 def season_label(job):
-    return f"{int(job.get('season') or 1):02d}"
+    season = normalize_season(job.get("season"))
+    return f"{int(season):02d}"
 
 
 def episode_label(value):
diff --git a/queue_page.py b/queue_page.py
index f3cca48..94be267 100644
--- a/queue_page.py
+++ b/queue_page.py
@@ -420,7 +420,8 @@ QUEUE_HTML = r"""<!doctype html>
         return `${progress} · ${moved} · ${files} · ${target}`;
       }
       const libraryName = job.anime_name || job.title;
-      const season = String(job.season || "1").padStart(2, "0");
+      const rawSeason = job.season === 0 || job.season ? job.season : "1";
+      const season = String(rawSeason).padStart(2, "0");
       const seasonFolder = `Season ${season}`;
       const target = job.target_dir || `${job.download_dir}/${libraryName}/${seasonFolder}`;
       return `${libraryName} · S${season} · ${job.mode} · ${job.quality} · episodes ${job.episodes} · ${target}`;
diff --git a/search_page.py b/search_page.py
index 7676dfb..acc53fa 100644
--- a/search_page.py
+++ b/search_page.py
@@ -520,7 +520,7 @@ INDEX_HTML = r"""<!doctype html>
         </div>
         <div class="row">
           <label>Season
-            <input id="seasonInput" inputmode="numeric" pattern="[0-9]*" value="1">
+            <input id="seasonInput" type="number" min="0" step="1" inputmode="numeric" pattern="[0-9]*" value="1">
           </label>
           <label>Episodes
             <input id="episodesInput" placeholder="1-12">
diff --git a/test_app.py b/test_app.py
index 71740aa..b66385a 100644
--- a/test_app.py
+++ b/test_app.py
@@ -906,6 +906,32 @@ class QueueApiTests(unittest.TestCase):
             )
             self.assertTrue(Path(moved[0]).exists())
 
+    def test_tv_finalizer_accepts_season_zero_for_specials(self):
+        with tempfile.TemporaryDirectory() as temp_root:
+            job = APP.app_support.build_job(
+                {
+                    "query": "Special Show",
+                    "title": "Special Show",
+                    "anime_name": "Special Show",
+                    "media_type": "tv",
+                    "mode": "sub",
+                    "quality": "best",
+                    "episodes": "1",
+                    "download_dir": temp_root,
+                    "season": "0",
+                },
+                {"mode": "sub", "quality": "best", "download_dir": temp_root},
+            )
+            staging_dir = APP.app_support.job_staging_dir(job)
+            staging_dir.mkdir(parents=True, exist_ok=True)
+            source = staging_dir / "Special Show Episode 1.mp4"
+            source.write_bytes(b"ep1")
+
+            moved = APP.app_support.finalize_library_files(job)
+
+            self.assertEqual(moved, [f"{temp_root}/tv/Special Show/Season 00/Special Show - S00E01.mp4"])
+            self.assertTrue(Path(moved[0]).exists())
+
     def test_tv_finalizer_can_move_one_finished_episode_without_removing_staging(self):
         with tempfile.TemporaryDirectory() as temp_root:
             job = APP.app_support.build_job(
@@ -2016,6 +2042,22 @@ class WatchlistCompletionTests(unittest.TestCase):
 
         self.assertEqual(result["item"]["auto_download_series"], "4")
 
+    def test_add_uses_requested_auto_download_series_zero(self):
+        with mock.patch.object(APP.WATCHLIST, "schedule_refresh", side_effect=lambda show_id, source="manual": APP.WATCHLIST.get(show_id)):
+            result = APP.WATCHLIST.add(
+                {"show_id": "show-23z", "title": "Queued Specials", "category": "watching", "auto_download_series": "0"}
+            )
+
+        self.assertEqual(result["item"]["auto_download_series"], "0")
+
+    def test_update_auto_download_settings_uses_series_zero(self):
+        with mock.patch.object(APP.WATCHLIST, "schedule_refresh", side_effect=lambda show_id, source="manual": APP.WATCHLIST.get(show_id)):
+            APP.WATCHLIST.add({"show_id": "show-23s", "title": "Queued Specials", "category": "watching"})
+
+        item = APP.WATCHLIST.update_auto_download_settings("show-23s", series="0")
+
+        self.assertEqual(item["auto_download_series"], "0")
+
     def test_add_uses_requested_auto_download_offset(self):
         with mock.patch.object(APP.WATCHLIST, "schedule_refresh", side_effect=lambda show_id, source="manual": APP.WATCHLIST.get(show_id)):
             result = APP.WATCHLIST.add(
@@ -2245,6 +2287,26 @@ class WatchlistCompletionTests(unittest.TestCase):
         self.assertEqual(result["job"], job)
         self.assertIn("Queued Queue Show for dub download.", result["message"])
 
+    def test_download_watchlist_item_queues_season_zero(self):
+        item = {
+            "show_id": "show-42",
+            "title": "Queue Specials",
+            "auto_download_name": "Queue Specials Library",
+            "auto_download_source_name": "Queue Specials Source",
+            "auto_download_series": "0",
+            "auto_download_quality": "720",
+            "media_type": "tv",
+        }
+        job = {"id": "job-1", "show_id": "show-42", "episodes": "1", "mode": "dub"}
+        with mock.patch.object(APP, "ensure_runtime", return_value={"watchlist": APP.WATCHLIST, "download_queue": mock.Mock(), "config": {"quality": "best", "download_dir": "/tmp/downloads"}}), mock.patch.object(
+            APP.WATCHLIST, "get", return_value=item
+        ), mock.patch.object(APP, "episode_list", return_value=["1"]):
+            runtime = APP.ensure_runtime()
+            runtime["download_queue"].add.return_value = job
+            APP.download_watchlist_item("show-42", "dub")
+
+        self.assertEqual(runtime["download_queue"].add.call_args.args[0]["season"], "0")
+
     def test_remove_from_watchlist_detaches_existing_queue_jobs(self):
         runtime = APP.ensure_runtime()
         APP.WATCHLIST.add({"show_id": "show-queue-remove", "title": "Queue Remove Show"})
@@ -3205,6 +3267,39 @@ class AutoDownloadQueueTests(unittest.TestCase):
             }
         )
 
+    def test_queue_watchlist_auto_download_queues_season_zero(self):
+        item = {
+            "show_id": "show-42",
+            "title": "Queue Specials",
+            "category": "watching",
+            "dub_episode_values": ["1"],
+            "sub_episode_values": [],
+            "auto_download_mode": "dub",
+            "auto_download_quality": "best",
+            "auto_download_name": "Queue Specials",
+            "auto_download_source_name": "Queue Specials Source",
+            "auto_download_series": "0",
+            "auto_download_offset": None,
+            "downloaded_dub_episodes": [],
+            "downloaded_sub_episodes": [],
+        }
+        download_queue = mock.Mock()
+        download_queue.covered_episodes.return_value = set()
+        runtime = {
+            "config": {
+                "auto_download_enabled": True,
+                "auto_download_mode": "dub",
+                "auto_download_quality": "best",
+                "download_dir": "/tmp/downloads",
+            },
+            "download_queue": download_queue,
+        }
+        with mock.patch.object(APP, "ensure_runtime", return_value=runtime):
+            result = APP.queue_watchlist_auto_download(item, refresh_source="manual")
+
+        self.assertTrue(result["queued"])
+        self.assertEqual(download_queue.add.call_args.args[0]["season"], "0")
+
     def test_queue_watchlist_auto_download_can_queue_existing_backlog_after_initial_seed_refresh(self):
         item = {
             "show_id": "show-99",
@@ -4270,6 +4365,7 @@ class TemplateHelperTests(unittest.TestCase):
 
     def test_search_page_sends_watchlist_auto_download_series(self):
         self.assertIn('auto_download_series: $("seasonInput").value || "1"', APP.INDEX_HTML)
+        self.assertIn('id="seasonInput" type="number" min="0"', APP.INDEX_HTML)
 
     def test_search_page_closes_selection_modal_after_successful_actions(self):
         self.assertIn('setNotice(data.message || "Added to watchlist.");\n        closeSelectionModal();', APP.INDEX_HTML)
@@ -4423,6 +4519,7 @@ class TemplateHelperTests(unittest.TestCase):
         self.assertIn("closeAutoDownloadOverlay()", APP.WATCHLIST_HTML)
         self.assertIn("Save auto-download", APP.WATCHLIST_HTML)
         self.assertIn("Manual add does not trigger it", APP.WATCHLIST_HTML)
+        self.assertIn('id="autoDownloadSeries" type="number" min="0"', APP.WATCHLIST_HTML)
         self.assertIn("Source name", APP.WATCHLIST_HTML)
         self.assertIn('id="autoDownloadSourceName"', APP.WATCHLIST_HTML)
         self.assertIn("Name source", APP.WATCHLIST_HTML)
diff --git a/watchlist_page.py b/watchlist_page.py
index a89fafc..f22fa34 100644
--- a/watchlist_page.py
+++ b/watchlist_page.py
@@ -835,7 +835,7 @@ WATCHLIST_HTML = r"""<!doctype html>
           </select>
         </label>
         <label>Series
-          <input class="auto-download-series" id="autoDownloadSeries" type="number" min="1" step="1" value="1">
+          <input class="auto-download-series" id="autoDownloadSeries" type="number" min="0" step="1" value="1">
         </label>
         <label>Episode offset
           <input class="auto-download-offset" id="autoDownloadOffset" type="number" min="1" step="1" placeholder="Optional">