Skip generic shows from duplicate removal actions (#8370)

Co-authored-by: Claus Vium <cvium@users.noreply.github.com>

Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs

@@ -2218,6 +2218,12 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 {
                     continue;
                 }
+                
+                // Skip ShowId without SubKey from duplicate removal actions - https://github.com/jellyfin/jellyfin/issues/5856
+                if (group.Key.EndsWith("0000")) 
+                {
+                    continue;
+                }
 
                 HandleDuplicateShowIds(groupTimers);
             }