Fixed: Parsing of mini episodes that contain the year in the title

src/NzbDrone.Core.Test/ParserTests/MiniSeriesEpisodeParserFixture.cs

@@ -14,8 +14,9 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("The.Kennedys.Part.2.DSR.XviD-SYS", "The Kennedys", 2)]
         [TestCase("the-pacific-e07-720p", "the-pacific", 7)]
         [TestCase("Hatfields and McCoys 2012 Part 1 REPACK 720p HDTV x264 2HD", "Hatfields and McCoys 2012", 1)]
-//        [TestCase("Band.Of.Brothers.EP02.Day.Of.Days.DVDRiP.XviD-DEiTY", "Band.Of.Brothers", 2)]
-//        [TestCase("", "", 0, 0)]
+        //[TestCase("Band.Of.Brothers.EP02.Day.Of.Days.DVDRiP.XviD-DEiTY", "Band.Of.Brothers", 2)]
+        //[TestCase("", "", 0, 0)]
+        [TestCase("Mars.2016.E04.Power.720p.WEB-DL.DD5.1.H.264-MARS", "Mars 2016", 4)]
         public void should_parse_mini_series_episode(string postTitle, string title, int episodeNumber)
         {
             var result = Parser.Parser.ParseTitle(postTitle);

src/NzbDrone.Core/Parser/Parser.cs

@@ -78,8 +78,16 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:(?:[ex]|[-_. ]e){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
-                //Episodes with a title, Single episodes (S01E05, 1x05, etc) & Multi-episode (S01E05E06, S01E05-06, S01E05 E06, etc) **
-                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))*)\W?(?!\\)",
+                //Episodes with a title, Single episodes (S01E05, 1x05, etc) & Multi-episode (S01E05E06, S01E05-06, S01E05 E06, etc)
+                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S?(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))*)\W?(?!\\)",
+                          RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
+                //Episodes with a title, 4 digit season number, Single episodes (S2016E05, etc) & Multi-episode (S2016E05E06, S2016E05-06, S2016E05 E06, etc)
+                new Regex(@"^(?<title>.+?)(?:(?:[-_\W](?<![()\[!]))+S(?<season>(?<!\d+)(?:\d{4})(?!\d+))(?:[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+))(?:(?:\-|[ex]|\W[ex]|_){1,2}(?<episode>\d{2,3}(?!\d+)))*)\W?(?!\\)",
+                          RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
+                //Mini-Series with year in title, treated as season 1, episodes are labelled as Part01, Part 01, Part.1
+                new Regex(@"^(?<title>.+?\d{4})(?:\W+(?:(?:Part\W?|e)(?<episode>\d{1,2}(?!\d+)))+)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Mini-Series, treated as season 1, episodes are labelled as Part01, Part 01, Part.1