Assuming 12 oz Mouse, I can actually pinpoint two potential dates, and the episodes so OP can check them.
According to cnas.fandom.com/wiki/Charlie_and_the_Chocolate_Factory , the movie aired six times in 2017, two airings of which were on nights that, hours later, had an episode of 12 oz Mouse air, those being April 3rd (Episode "Hired") and April 10th (Episode "Spharktasm"). Could also cross reference with the rest of Adult Swim's schedules for those nights to see if anything familiar comes up sites.google.com/site/swimpediaiscoming/adult-swim-schedules/2017?authuser=0 as well as any of the days the movie aired on in 2017 in general through the first link
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.
