The only TV fandoms I follow are Yokai Watch and Moomin. And a little of Naruto (mostly looking at fanart, I haven't seen any of the new episodes). I do follow Monster High and Ever After High stuff, but I don't know if that counts as "TV", they do have webisodes and films.
I tried to get into the Gravity Falls fandom but I absolutely HATED it, too many little kids, too many die-hard shippers.
I do watch Bobs Burgers, Steven Universe, Ladybug, and Clarence but I am not involved with the fandoms.