Update Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs

Emby.Server.Implementations/LiveTv/TunerHosts/BaseTunerHost.cs

@@ -83,7 +83,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                 try
                 {
                     var channels = await GetChannels(host, enableCache, cancellationToken).ConfigureAwait(false);
-                    var newChannels = channels.Where(i => !list.Any(l => string.Equals(i.Id, l.Id, StringComparison.OrdinalIgnoreCase)));
+                    var newChannels = channels.Where(i => !list.Any(l => string.Equals(i.Id, l.Id, StringComparison.OrdinalIgnoreCase))).ToList();
 
                     list.AddRange(newChannels);