Doug Gets His Ears Lowered / Doug On The Wild Side - S1-E8
Other mistake: Doug Gets His Ears Lowered: Doug tells Porkchop about his old barber, Big Al. In the flashback, Big Al wears a smock with his name patch and a pocket containing scissors, but the problem is Al's reflection is not reversed in the mirror. (00:01:50)
Other mistake: At Honker Burger, when Skeeter introduces Doug to Patti, the lower half of Doug's body and both of his arms are missing; the animation is incomplete. (00:20:55)
Doug's Servitude / Doug Rocks the House - S3-E2
Other mistake: Doug Rocks the House: When Doug tries to talk to Patti at her locker, after he gives the rock and marker back to the kid beside him, the kid's glasses lose their colour for one frame. (00:18:00)
Doug and the Weird Kids / Doug's Behind The Wheel - S3-E6
Other mistake: Doug's Behind the Wheel: When Judy parallel parks the car, as Doug tells her that she just parallel parked, he sticks his hand right through her seatbelt to touch her shoulder. (00:21:51)
Doug's Fat Cat / Doug and Patti P.I. - S3-E1
Other mistake: Doug's Fat Cat: When Doug is filling up Stinky's food bowl, the name on the bowl is misspelled as "Stiniky." When he places the bowl on the floor, the name is spelled correctly. (00:05:37)
Doug is Quailman / Doug Out in Left Field - S1-E12
Other mistake: Doug Out In Left Field: When the kids are carrying Patti at the end, there is a boy behind Doug whose blue shorts keep flashing green, and his light green hair keeps flashing dark green. In the next shot, his hair stays dark green. (00:22:21)
Doug Can't Dig It / Doug Didn't Do It - S1-E5
Other mistake: Doug Can't Dig It: After Judy finishes her performance in Doug's imagination, when the curtains close behind her, she is layered behind them for a split-second. (00:03:19)
Doug Can't Dig It / Doug Didn't Do It - S1-E5
Other mistake: Doug Can't Dig It: When Doug imagines Judy performing at the school, as Judy says, "My soul throbs," her right sleeve turns purple twice. (00:02:52)
Doug Takes a Hike / Doug Rocks - S1-E4
Other mistake: Doug Rocks: When Doug and Skeeter win the contest to see The Beets, when Roger says, "Gee Funnie, I guess even a loser like you gets lucky once in a while," the logo on Roger's shirt is reversed. (00:17:23)
