diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs
index c483f3c61f..8568104941 100644
--- a/Emby.Server.Implementations/Library/LibraryManager.cs
+++ b/Emby.Server.Implementations/Library/LibraryManager.cs
@@ -2630,15 +2630,6 @@ namespace Emby.Server.Implementations.Library
                 {
                     episode.ParentIndexNumber = season.IndexNumber;
                 }
-                else
-                {
-                    /*
-                    Anime series don't generally have a season in their file name, however,
-                    TVDb needs a season to correctly get the metadata.
-                    Hence, a null season needs to be filled with something. */
-                    // FIXME perhaps this would be better for TVDb parser to ask for season 1 if no season is specified
-                    episode.ParentIndexNumber = 1;
-                }
 
                 if (episode.ParentIndexNumber.HasValue)
                 {
diff --git a/MediaBrowser.Providers/Plugins/Omdb/OmdbEpisodeProvider.cs b/MediaBrowser.Providers/Plugins/Omdb/OmdbEpisodeProvider.cs
index d8b33a799f..ccff31ebaa 100644
--- a/MediaBrowser.Providers/Plugins/Omdb/OmdbEpisodeProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Omdb/OmdbEpisodeProvider.cs
@@ -55,13 +55,12 @@ namespace MediaBrowser.Providers.Plugins.Omdb
 
             if (info.SeriesProviderIds.TryGetValue(MetadataProvider.Imdb.ToString(), out string? seriesImdbId)
                 && !string.IsNullOrEmpty(seriesImdbId)
-                && info.IndexNumber.HasValue
-                && info.ParentIndexNumber.HasValue)
+                && info.IndexNumber.HasValue)
             {
                 result.HasMetadata = await _omdbProvider.FetchEpisodeData(
                     result,
                     info.IndexNumber.Value,
-                    info.ParentIndexNumber.Value,
+                    info.ParentIndexNumber ?? 1,
                     info.GetProviderId(MetadataProvider.Imdb),
                     seriesImdbId,
                     info.MetadataLanguage,
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeImageProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeImageProvider.cs
index d1fec7cb13..7de0e430f2 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeImageProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeImageProvider.cs
@@ -63,10 +63,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
                 return Enumerable.Empty<RemoteImageInfo>();
             }
 
-            var seasonNumber = episode.ParentIndexNumber;
+            var seasonNumber = episode.ParentIndexNumber ?? 1;
             var episodeNumber = episode.IndexNumber;
 
-            if (!seasonNumber.HasValue || !episodeNumber.HasValue)
+            if (!episodeNumber.HasValue)
             {
                 return Enumerable.Empty<RemoteImageInfo>();
             }
@@ -75,7 +75,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
 
             // TODO use image languages if All Languages isn't toggled, but there's currently no way to get that value in here
             var episodeResult = await _tmdbClientManager
-                .GetEpisodeAsync(seriesTmdbId, seasonNumber.Value, episodeNumber.Value, series.DisplayOrder, null, null, cancellationToken)
+                .GetEpisodeAsync(seriesTmdbId, seasonNumber, episodeNumber.Value, series.DisplayOrder, null, null, cancellationToken)
                 .ConfigureAwait(false);
 
             var stills = episodeResult?.Images?.Stills;
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProvider.cs
index e628abde55..c93dabb66c 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TV/TmdbEpisodeProvider.cs
@@ -47,7 +47,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
         public async Task<IEnumerable<RemoteSearchResult>> GetSearchResults(EpisodeInfo searchInfo, CancellationToken cancellationToken)
         {
             // The search query must either provide an episode number or date
-            if (!searchInfo.IndexNumber.HasValue || !searchInfo.ParentIndexNumber.HasValue)
+            if (!searchInfo.IndexNumber.HasValue)
             {
                 return Enumerable.Empty<RemoteSearchResult>();
             }
@@ -96,10 +96,10 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
                 return metadataResult;
             }
 
-            var seasonNumber = info.ParentIndexNumber;
+            var seasonNumber = info.ParentIndexNumber ?? 1;
             var episodeNumber = info.IndexNumber;
 
-            if (!seasonNumber.HasValue || !episodeNumber.HasValue)
+            if (!episodeNumber.HasValue)
             {
                 return metadataResult;
             }
@@ -112,7 +112,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
                 List<TvEpisode>? result = null;
                 for (int? episode = startindex; episode <= endindex; episode++)
                 {
-                    var episodeInfo = await _tmdbClientManager.GetEpisodeAsync(seriesTmdbId, seasonNumber.Value, episode.Value, info.SeriesDisplayOrder, info.MetadataLanguage, TmdbUtils.GetImageLanguagesParam(info.MetadataLanguage), cancellationToken).ConfigureAwait(false);
+                    var episodeInfo = await _tmdbClientManager.GetEpisodeAsync(seriesTmdbId, seasonNumber, episode.Value, info.SeriesDisplayOrder, info.MetadataLanguage, TmdbUtils.GetImageLanguagesParam(info.MetadataLanguage), cancellationToken).ConfigureAwait(false);
                     if (episodeInfo is not null)
                     {
                         (result ??= new List<TvEpisode>()).Add(episodeInfo);
@@ -156,7 +156,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.TV
             else
             {
                 episodeResult = await _tmdbClientManager
-                    .GetEpisodeAsync(seriesTmdbId, seasonNumber.Value, episodeNumber.Value, info.SeriesDisplayOrder, info.MetadataLanguage, TmdbUtils.GetImageLanguagesParam(info.MetadataLanguage), cancellationToken)
+                    .GetEpisodeAsync(seriesTmdbId, seasonNumber, episodeNumber.Value, info.SeriesDisplayOrder, info.MetadataLanguage, TmdbUtils.GetImageLanguagesParam(info.MetadataLanguage), cancellationToken)
                     .ConfigureAwait(false);
             }