The Kiss Seen Around the World - S3-E8
Audio problem: Neil uses a tape recorder to record Meg, and the recording can be heard to say "Give it to me. Give it to me Neil" however the actual dialog when spoken included a line by Neil between the end of "Give it to me" for the first time and before the second. Which isn't in the playback. (00:07:30)
Audio problem: In the scene where Quagmire is bidding on the prostitutes panties, the auctioneer says that she had 9 STDs, but the closed captions have him saying, "She had 12 STDs." (00:03:20)
A Very Special Family Guy Freakin' Christmas - S3-E16
Audio problem: After Lois goes insane and jumps out the window, she insults Frosty the Snowman, who then goes up to her to demand an apology. Lois then takes out a match and uses Frosty's nose to light it. Frosty recoils, holding his nose and saying "Ow, ow, what the-" but it cuts to a shot of Lois grabbing a bottle of beer from a hobo as Frosty is saying "What the" and it shows him standing perfectly straight, with his mouth not moving at all.
Brian Wallows and Peter's Swallows - S3-E17
Audio problem: The keys that Jonas hits don't correspond to the music we hear. (00:01:15)
Audio problem: When the English mother at the airport says "These are all ours", she says it in a posh American accent, not an English one. (00:05:30)
When You Wish Upon a Weinstein - S3-E22
Audio problem: When Peter sings "I Need A Jew", his mouth doesn't match the lyrics when he sings the line, "I don't think they killed my Lord"; this is because the original line, "Even though they killed my Lord" was considered too anti-Semitic.
