diff --git a/templates/admin_yt.html b/templates/admin_yt.html
index 2ab035f..309e91c 100644
--- a/templates/admin_yt.html
+++ b/templates/admin_yt.html
@@ -54,7 +54,7 @@
     <div class="setgrid" style="margin-top:.8rem">
       <label class="fld"><span>Karens efter set (dage)</span><input type="number" name="grace_days" min="0" max="365" value="{{ settings.grace_days }}"></label>
       <label class="fld"><span>Undertekst-sprog</span><input name="sub_langs" value="{{ settings.sub_langs }}"></label>
-      <label class="fld"><span>Emby-bibliotek</span><input name="library_name" value="{{ settings.library_name }}"></label>
+      <label class="fld"><span>Emby-kanal/bibliotek</span><input name="library_name" value="{{ settings.library_name }}"></label>
       <label class="fld"><span>Kvalitet (yt-dlp -f)</span><input name="quality" value="{{ settings.quality }}"></label>
     </div>
     <p style="margin-top:1rem;display:flex;gap:.6rem;flex-wrap:wrap">
diff --git a/ytdl.py b/ytdl.py
index c7f968c..3c19bac 100644
--- a/ytdl.py
+++ b/ytdl.py
@@ -1153,34 +1153,32 @@ def _marked_played(ud: dict) -> bool:
     return bool((ud or {}).get("Played"))
 
 
-async def _kanal_brugerdata(c, users: list, merged: dict) -> None:
-    """Læg set/favorit fra Emby-kanalen "YouTube" (kanal-plugin'et) oven i
-    biblioteket for samme fil, så slettereglen og fredningen virker uanset hvor
-    videoen blev set. Kanalens elementer bærer video-id'et i ProviderIds["youtube"];
-    stien findes via indekset. Mangler kanalen eller indekset, sker der intet.
-    (Plugin'et synkroniserer selv kanal og bibliotek; det her er et sikkerhedsnet.)"""
+async def _kanal_brugerdata(c, users: list, merged: dict, navn: str) -> bool:
+    """Læg set/favorit fra Emby-kanalen (kanal-plugin'et) ind i `merged`, nøglet på
+    filens sti. Kanalens elementer bærer video-id'et i ProviderIds["youtube"]; stien
+    findes via indekset. Samme video ligger i "Alle videoer" og i playlister, og
+    kopierne deler brugerdata, så det er ligegyldigt hvilken vi læser.
+
+    False hvis kanalen eller indekset mangler. Fejler opslaget for en bruger, kastes
+    der: uden alle brugeres favoritter må slettereglen ikke køre."""
     try:
         with open(indeks_sti(), encoding="utf-8") as f:
             stier = {vid: os.path.realpath(v["path"]) for vid, v in json.load(f)["videos"].items()}
     except (OSError, ValueError, KeyError):
-        return
-    try:
-        kanaler = await _emby(c, "/Channels", UserId=users[0]) if users else {}
-    except Exception:                                             # noqa: BLE001
-        return
+        return False
+    if not users:
+        return False
+    kanaler = await _emby(c, "/Channels", UserId=users[0])
     kanal = next((k for k in (kanaler.get("Items") or [])
-                  if (k.get("Name") or "").lower() == "youtube"), None)
+                  if (k.get("Name") or "").lower() == navn.lower()), None)
     if not kanal:
-        return
+        return False
     for uid in users:
-        try:
-            data = await _emby(c, f"/Users/{uid}/Items", ParentId=kanal["Id"],
-                               Recursive="true", Fields="ProviderIds,UserData")
-        except Exception:                                         # noqa: BLE001
-            continue
+        data = await _emby(c, f"/Users/{uid}/Items", ParentId=kanal["Id"],
+                           Recursive="true", IncludeItemTypes="Video", Fields="ProviderIds,UserData")
         for it in data.get("Items", []):
             pid = it.get("ProviderIds") or {}
-            vid = pid.get("YouTube") or pid.get("Youtube") or pid.get("youtube")
+            vid = pid.get("youtube") or pid.get("YouTube") or pid.get("Youtube")
             sti = stier.get(vid or "")
             if not sti:
                 continue
@@ -1191,38 +1189,43 @@ async def _kanal_brugerdata(c, users: list, merged: dict) -> None:
                 m["played"] = True
             if ud.get("IsFavorite"):
                 m["favorite"] = True
+    return True
 
 
 async def emby_yt_items() -> dict:
-    """Alle videoer i YouTube-biblioteket med set/favorit aggregeret over ALLE brugere."""
+    """Alle videoer i Emby med set/favorit aggregeret over ALLE brugere.
+
+    Kilden er kanalen fra kanal-plugin'et og/eller et bibliotek med samme navn
+    (standard "YouTube"). Findes ingen af dem, er svaret ok=False, så intet slettes."""
     settings = get_settings()
+    navn = settings.get("library_name") or "YouTube"
     out = {"ok": False, "items": [], "error": ""}
     try:
         async with httpx.AsyncClient(timeout=45) as c:
-            lib = await _library_id(c, settings.get("library_name") or "YouTube")
-            if not lib:
-                out["error"] = (f"Fandt ikke Emby-biblioteket "
-                                f"'{settings.get('library_name')}'")
-                return out
             users = [u["Id"] for u in await _emby(c, "/Users")]
             merged = {}
-            for uid in users:
-                data = await _emby(c, f"/Users/{uid}/Items", ParentId=lib,
-                                   Recursive="true", Fields="Path,UserData")
-                for it in data.get("Items", []):
-                    path = it.get("Path") or ""
-                    if not path:
-                        continue
-                    key = os.path.realpath(path)
-                    m = merged.setdefault(key, {
-                        "id": it["Id"], "name": it.get("Name") or os.path.basename(path),
-                        "path": key, "played": False, "favorite": False})
-                    ud = it.get("UserData") or {}
-                    if _marked_played(ud):
-                        m["played"] = True
-                    if ud.get("IsFavorite"):
-                        m["favorite"] = True
-            await _kanal_brugerdata(c, users, merged)
+            lib = await _library_id(c, navn)
+            if lib:
+                for uid in users:
+                    data = await _emby(c, f"/Users/{uid}/Items", ParentId=lib,
+                                       Recursive="true", Fields="Path,UserData")
+                    for it in data.get("Items", []):
+                        path = it.get("Path") or ""
+                        if not path:
+                            continue
+                        key = os.path.realpath(path)
+                        m = merged.setdefault(key, {
+                            "id": it["Id"], "name": it.get("Name") or os.path.basename(path),
+                            "path": key, "played": False, "favorite": False})
+                        ud = it.get("UserData") or {}
+                        if _marked_played(ud):
+                            m["played"] = True
+                        if ud.get("IsFavorite"):
+                            m["favorite"] = True
+            kanal = await _kanal_brugerdata(c, users, merged, navn)
+            if not lib and not kanal:
+                out["error"] = f"Fandt hverken Emby-kanalen eller -biblioteket '{navn}'"
+                return out
             out["items"] = list(merged.values())
             out["ok"] = True
     except Exception as e:                                        # noqa: BLE001