The most frequent animation error seen in the show is the appearance of the eyebrows (and some cases the eyes). The eyebrows are known to disappear and/or reappear at times, or in rare cases even "duplicate", creating an extra pair of eyebrows (as seen on Lois' father when Peter meets him in "Death Lives"). See more
[Brian watches Nova
Man on Nova
After years of study, I discovered the secret to longer life for canines, and that secret is...
Man on TV
We interrupt this program for several episodes of "One Day at a Time"
Damn it, Julie, I'm a single mother doing the best damn job she knows how, and damn it Schneider, I ask you to fix that damn sink two days ago.
Oh, I'll fix your sink Ms. Romano, and by "fix your sink" I mean I'll have sex with you, and by "I have sex with you" I mean I'll fix your sink. And by "sink" I mean ...