Here is how to clean them off properly.
Hopefully you can see the toddler sized schmears all over the playroom TV screen.
You will need:
a mixture of 1/8 c. water and 1/8 c. alcohol
2 microfiber cloths
Step 1: Dampen one of your cloths with the alcohol solution. I mean damp. Squeeze as much out as you can.
Step 2: Wipe down the TV with the damp cloth. I do it all, screen, sides, top, back, everything.
Step 3: Use your other cloth to dry the television.
Squeaky clean. Until nap time is over.