fix channel guide time zone

ErsatzTV.Core/Iptv/ChannelGuide.cs

@@ -55,8 +55,8 @@ namespace ErsatzTV.Core.Iptv
             {
                 foreach (PlayoutItem playoutItem in channel.Playouts.Collect(p => p.Items).OrderBy(i => i.Start))
                 {
-                    string start = playoutItem.Start.ToString("yyyyMMddHHmmss zzz").Replace(":", string.Empty);
-                    string stop = playoutItem.Finish.ToString("yyyyMMddHHmmss zzz").Replace(":", string.Empty);
+                    string start = playoutItem.StartOffset.ToString("yyyyMMddHHmmss zzz").Replace(":", string.Empty);
+                    string stop = playoutItem.FinishOffset.ToString("yyyyMMddHHmmss zzz").Replace(":", string.Empty);
 
                     string title = playoutItem.MediaItem switch
                     {

ErsatzTV.Core/Iptv/ChannelPlaylist.cs

@@ -42,7 +42,7 @@ namespace ErsatzTV.Core.Iptv
                 };
 
                 sb.AppendLine(
-                    $"#EXTINF:0 tvg-id=\"{channel.Number}\" CUID=\"{shortUniqueId}\" tvg-chno=\"{channel.Number}\" tvg-name=\"{channel.Name}\" tvg-logo=\"{logo}\" group-title=\"ErsatzTV\", {channel.Name}");
+                    $"#EXTINF:0 tvg-id=\"{channel.Number}\" channel-id=\"{shortUniqueId}\" channel-number=\"{channel.Number}\" CUID=\"{shortUniqueId}\" tvg-chno=\"{channel.Number}\" tvg-name=\"{channel.Name}\" tvg-logo=\"{logo}\" group-title=\"ErsatzTV\", {channel.Name}");
                 sb.AppendLine($"{_scheme}://{_host}/iptv/channel/{channel.Number}.{format}");
             }