I have my TV Shows in their own folders with little thumbs, if I click OK on the folder I end up inside it with all my TV files and then pressing PLAY or OK on one of the files plays it then stops when its done.
If I press PLAY instead of OK on the shows folder then all files inside that folder play back to back.
I do not have the autoplay setting in menu enabled as I do not want that for long movies/shows but if they are short 20mins Eps likes yours I still have the option.
