Uknown cable tv show 2017?

Back in the spring of 2017, I was in a hotel room in Anaheim, CA watching the film Charlie and the Chocolate Factory on Cartoon Network. I do not recall what happened next, but I recall after the film was done, a show played that kind of looked like a child's drawing. From what I can recall there where monsters on a room.
Hopefully something gets found

The room's color was white. 
It doesn't have to be on Cartoon Network. It just has to be on a channel on cable.