I've been doing the same thing but around live TV. The goal is each show is its own community that essentially forms and disperses as the shows are live and then end.
What are you doing to market your project, and have you had an easy time getting users?
As you can imagine, it's hard to crack the chicken/egg social platform problem, so user acquisition is slow going and I'm completely bootstrapped. I'm in it for the long haul though (it's been over 8 years now in the making).
Kind of a tangential thought - it would be kind of cool to have crowdsourced 'prediction markets' for the tv shows - i.e. people guess what's going to happen in an episode or season.
Aside from that my motto has been that if you say something that doesn’t exist should exist, it’s now on you to make it happen or to find and fund someone who will. Organize an event using this service or another, advertise it to a few friends, make sure everyone has a fun time, they’ll spread the word for the next event for you.