Why is the update apple tv, iTunes movie's so bad. Movies do not load .
Apple Tv did an auto update. Purchased movies only show maybe the first 30 rest are all blank and you have to click on it to read the name of the movie. Really bad.
Try a force-quit of the TV app, then relaunch.
Try a device restart. Disconnect from power for ~30 seconds.
Try signing out for your Store account, then sign back in again.
If the issue persists after all that, then contact Apple Support.