Missing on demand episodes of catfish tv show

Catfish on demand has not updated for a month, the last episode for the current season aired 8/05 & that is showing, but there have been 3 or 4 since then. Can't watch them online on the MTV site because you have to log in with your existing provider.... but Xfinity is no longer a listed provider. We pay too much for the service, that means the FULL service. This is only one of the many on demand issues I've experienced lately.