Should fix 4K releases not getting parsed.

src/NzbDrone.Core/Parser/Parser.cs

@@ -268,7 +268,7 @@ namespace NzbDrone.Core.Parser
 
         private static readonly Regex ReportImdbId = new Regex(@"(?<imdbid>tt\d{9})", RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-        private static readonly Regex SimpleTitleRegex = new Regex(@"(?:480[ip]|576[ip]|720[ip]|1080[ip]|[xh][\W_]?26[45]|DD\W?5\W1|[<>?*:|]|848x480|1280x720|1920x1080|(8|10)b(it)?)\s*",
+        private static readonly Regex SimpleTitleRegex = new Regex(@"(?:480[ip]|576[ip]|720[ip]|1080[ip]|2160[ip]|[xh][\W_]?26[45]|DD\W?5\W1|[<>?*:|]|848x480|1280x720|1920x1080|(8|10)b(it)?)\s*",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex WebsitePrefixRegex = new Regex(@"^\[\s*[a-z]+(\.[a-z]+)+\s*\][- ]*",