As far as I remember, there's a channel with the park hours, a channel for your resort, the previously mentioned Must Do Disney, A Disney Springs Travelogue, A weird Vacation Club channel with a puppet thing, a channel for Disney film/TV trailers, and a channel for Timon and Pumbaa safety videos. Oh yeah, and there's also a bunch of regular channels too.
But the TV on the Disney Cruise Line is even better, I think there were channels on that, but the main attraction was hundreds of Disney movies and shows On Demand, and a handful of movies in theaters.