The Honking - S3-E1
Audio problem: After they have welded Bender to the wall Leela and Fry leaves. When they go outside the door is closing. It cuts and we hear the door close but we can see the door is already closed. (00:11:45)
Audio problem: After Nasedo reveals himself in the morgue, there is a shot on Michael's face. There is no sound, but Nasedo can be seen in the foreground either talking animatedly or having an extremely localized seizure. (00:23:55)