Family Guy (1999)

Baby Not On Board - S7-E4

Plot hole: Stewie gets out of the car seat and goes back to bed, leaving the blanket at the bottom of the seat. When they get to New York, Lois goes to get him out and realises he's gone. But when they started the trip the blanket was covering the entire seat to make it look like Stewie was still in it. So who ever "covered" him up knew he wasn't in the seat before they set off. (00:13:45)

Lois: Hello?
Peter: I can't take the trash out today, I'm working late at the office.
Lois: The caller ID says you're calling from the kitchen. In fact I can see you.
Peter: [Edging sideways.] OK, can you see me now?
Lois: No.
Peter: Now I am at the office.

Grumpy Old Man - S10-E9

Trivia: One of the cutaway gags is about someone who survived 9/11 because he was late for work watching late night football. Seth MacFarlane missed his flight, which would have been one of the flights to crash into the World Trade Center, because his agent had given him the incorrect departure time. The plane was scheduled to depart at 7:45 AM and his agent had told him it was departing at 8:15 AM. By the time Seth arrived the boarding had been closed and he was told he would have to catch a later flight.