American Dragon: Jake Long - Color Blind?
About halfway into the episode, the bad oracle twin predicts that Rose will trip down the stairs. If you look, she's carrying books that are, from bottom to top, blue-green-yellow-blue-green-yellow-blue. Yet, when Jake catches them, the order is switched to blue-yellow-green repeated, and in the next shot, it's back again!
the episode "Body Guard Duty", your eyes, and a vcr/dvr