Implement https://trello.com/c/a1il1sTd

modified:   NzbDrone.Core/MediaFiles/EpisodeFileMovingService.cs

-modified:  DiskProvider.cs
added SetFolderAccessTime to the interface
added SetFolderAccessTime function

-modified MoveEpisodeFile.cs
call SetFolderAccessTime from both MoveEpisodeFile

NzbDrone.Common/DiskProvider.cs

@@ -39,6 +39,7 @@ namespace NzbDrone.Common
         string GetPathRoot(string path);
         void SetPermissions(string filename, WellKnownSidType accountSid, FileSystemRights rights, AccessControlType controlType);
         bool IsParent(string parentPath, string childPath);
+        void SetFolderAccessTime(string path, DateTime time){
         FileAttributes GetFileAttributes(string path);
         void EmptyFolder(string path);
     }
@@ -451,6 +452,10 @@ namespace NzbDrone.Common
             }
         }
 
+        private void SetFolderAccessTime(string path, DateTime time){
+            Directory.SetLastWriteTimeUtc(path,time);
+        }
+
         public FileAttributes GetFileAttributes(string path)
         {
             return File.GetAttributes(path);

NzbDrone.Core/MediaFiles/EpisodeFileMovingService.cs

@@ -43,6 +43,8 @@ namespace NzbDrone.Core.MediaFiles
             var newFileName = _buildFileNames.BuildFilename(episodes, series, episodeFile);
             var filePath = _buildFileNames.BuildFilePath(series, episodes.First().SeasonNumber, newFileName, Path.GetExtension(episodeFile.Path));
             MoveFile(episodeFile, filePath);
+            _diskProvider.SetFolderAccessTime( Path.GetDirectoryName(filePath), episodeFile.DateAdded);
+            _diskProvider.SetFolderAccessTime( series.Path, episodeFile.DateAdded);
 
             return filePath;
         }
@@ -52,6 +54,8 @@ namespace NzbDrone.Core.MediaFiles
             var newFileName = _buildFileNames.BuildFilename(localEpisode.Episodes, localEpisode.Series, episodeFile);
             var filePath = _buildFileNames.BuildFilePath(localEpisode.Series, localEpisode.SeasonNumber, newFileName, Path.GetExtension(episodeFile.Path));
             MoveFile(episodeFile, filePath);
+            _diskProvider.SetFolderAccessTime( Path.GetDirectoryName(filePath), episodeFile.DateAdded);
+            _diskProvider.SetFolderAccessTime( localEpisode.Series.Path, episodeFile.DateAdded);
 
             return filePath;
         }