2 files changed, 14 insertions, 7 deletions
diff --git a/MediaBrowser.Providers/TV/MissingEpisodeProvider.cs b/MediaBrowser.Providers/TV/MissingEpisodeProvider.cs
index 616c61ec0a..c833b12271 100644
--- a/MediaBrowser.Providers/TV/MissingEpisodeProvider.cs
+++ b/MediaBrowser.Providers/TV/MissingEpisodeProvider.cs
@@ -48,18 +48,25 @@ namespace MediaBrowser.Providers.TV
 
         public async Task<bool> Run(Series series, bool addNewItems, CancellationToken cancellationToken)
         {
-            var tvdbId = series.GetProviderId(MetadataProvider.Tvdb);
-            if (string.IsNullOrEmpty(tvdbId))
+            var tvdbIdString = series.GetProviderId(MetadataProvider.Tvdb);
+            if (string.IsNullOrEmpty(tvdbIdString))
             {
                 return false;
             }
 
-            var episodes = await _tvdbClientManager.GetAllEpisodesAsync(Convert.ToInt32(tvdbId), series.GetPreferredMetadataLanguage(), cancellationToken);
+            var episodes = await _tvdbClientManager.GetAllEpisodesAsync(
+                int.Parse(tvdbIdString, CultureInfo.InvariantCulture),
+                series.GetPreferredMetadataLanguage(),
+                cancellationToken).ConfigureAwait(false);
 
             var episodeLookup = episodes
                 .Select(i =>
                 {
-                    DateTime.TryParse(i.FirstAired, out var firstAired);
+                    if (!DateTime.TryParse(i.FirstAired, out var firstAired))
+                    {
+                        firstAired = default;
+                    }
+
                     var seasonNumber = i.AiredSeason.GetValueOrDefault(-1);
                     var episodeNumber = i.AiredEpisodeNumber.GetValueOrDefault(-1);
                     return (seasonNumber, episodeNumber, firstAired);
diff --git a/MediaBrowser.Providers/TV/SeasonMetadataService.cs b/MediaBrowser.Providers/TV/SeasonMetadataService.cs
index 5431de623e..4e59f78bc4 100644
--- a/MediaBrowser.Providers/TV/SeasonMetadataService.cs
+++ b/MediaBrowser.Providers/TV/SeasonMetadataService.cs
@@ -28,6 +28,9 @@ namespace MediaBrowser.Providers.TV
         }
 
         /// <inheritdoc />
+        protected override bool EnableUpdatingPremiereDateFromChildren => true;
+
+        /// <inheritdoc />
         protected override ItemUpdateType BeforeSaveInternal(Season item, bool isFullRefresh, ItemUpdateType currentUpdateType)
         {
             var updateType = base.BeforeSaveInternal(item, isFullRefresh, currentUpdateType);
@@ -68,9 +71,6 @@ namespace MediaBrowser.Providers.TV
         }
 
         /// <inheritdoc />
-        protected override bool EnableUpdatingPremiereDateFromChildren => true;
-
-        /// <inheritdoc />
         protected override IList<BaseItem> GetChildrenForMetadataUpdates(Season item)
             => item.GetEpisodes();