Continuity mistake: Patty's hair changes color many times throughout the episode. In some cases it's lighter, in other cases it's the normal color.
Doug (1991)
1 continuity mistake in Doug's New School - chronological order
Starring: Billy West, Becca Lish, Fred Newman
Doug Takes a Hike / Doug Rocks - S1-E4
Continuity mistake: When Roger is dancing in Skeeter's yard, he changes color.
Doug: Hi, Dale.
Dale Valentine: Hello, big nose.