diff --git a/Emby.Naming/Common/NamingOptions.cs b/Emby.Naming/Common/NamingOptions.cs
index e1f25fd2b..9cf430daf 100644
--- a/Emby.Naming/Common/NamingOptions.cs
+++ b/Emby.Naming/Common/NamingOptions.cs
@@ -329,31 +329,31 @@ namespace Emby.Naming.Common
                 // *** End Kodi Standard Naming
 
                 // [bar] Foo - 1 [baz]
-                new EpisodeExpression(@".*?(\[.*?\])+.*?(?<seriesname>(\w+\s)+?)[-\s_]+(?<epnumber>\d{1,3}).*$"){
+                new EpisodeExpression(@".*?(\[.*?\])+.*?(?<seriesname>(\w+\s)+?)[-\s_]+(?<epnumber>\d+).*$"){
                     IsNamed=false,
                 },
-                new EpisodeExpression(@".*(\\|\/)[sS]?(?<seasonnumber>\d{1,4})[xX](?<epnumber>\d{1,3})[^\\\/]*$")
+                new EpisodeExpression(@".*(\\|\/)[sS]?(?<seasonnumber>\d+)[xX](?<epnumber>\d+)[^\\\/]*$")
                 {
                     IsNamed = true
                 },
 
-                new EpisodeExpression(@".*(\\|\/)[sS](?<seasonnumber>\d{1,4})[x,X]?[eE](?<epnumber>\d{1,3})[^\\\/]*$")
+                new EpisodeExpression(@".*(\\|\/)[sS](?<seasonnumber>\d+)[x,X]?[eE](?<epnumber>\d+)[^\\\/]*$")
                 {
                     IsNamed = true
                 },
 
-                new EpisodeExpression(@".*(\\|\/)(?<seriesname>((?![sS]?\d{1,4}[xX]\d{1,3})[^\\\/])*)?([sS]?(?<seasonnumber>\d{1,4})[xX](?<epnumber>\d{1,3}))[^\\\/]*$")
+                new EpisodeExpression(@".*(\\|\/)(?<seriesname>((?![sS]?\d{1,4}[xX]\d{1,3})[^\\\/])*)?([sS]?(?<seasonnumber>\d{1,4})[xX](?<epnumber>\d+))[^\\\/]*$")
                 {
                     IsNamed = true
                 },
 
-                new EpisodeExpression(@".*(\\|\/)(?<seriesname>[^\\\/]*)[sS](?<seasonnumber>\d{1,4})[xX\.]?[eE](?<epnumber>\d{1,3})[^\\\/]*$")
+                new EpisodeExpression(@".*(\\|\/)(?<seriesname>[^\\\/]*)[sS](?<seasonnumber>\d{1,4})[xX\.]?[eE](?<epnumber>\d+)[^\\\/]*$")
                 {
                     IsNamed = true
                 },
 
                 // "01.avi"
-                new EpisodeExpression(@".*[\\\/](?<epnumber>\d{1,3})(-(?<endingepnumber>\d{2,3}))*\.\w+$")
+                new EpisodeExpression(@".*[\\\/](?<epnumber>\d+)(-(?<endingepnumber>\d+))*\.\w+$")
                 {
                     IsOptimistic = true,
                     IsNamed = true
diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs
index 90f373cc6..dd74b1060 100644
--- a/Emby.Server.Implementations/Library/LibraryManager.cs
+++ b/Emby.Server.Implementations/Library/LibraryManager.cs
@@ -2489,6 +2489,11 @@ namespace Emby.Server.Implementations.Library
                 }
                 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;
                 }