Arthur, the Invisible Bear - S2-E4
Audio problem: When the station wagon pulls into the mountain clearing there is no movement with the trees indicating they are on a sound studio, as some of the dialogue is acoustic. (00:24:00 - 00:24:30)
Family Affair (1966)
1 audio problem - chronological order
Starring: Brian Keith, Anissa Jones, Johnny Whitaker, Kathy Garver
Visible crew/equipment: Oliver (a dog) jumps up on Uncle Bill's bed and starts barking at him. The real reason the dog is barking: in the shots of Oliver, the shadow of a towel or some sort of toy can be seen being waved around in order to agitate the animal. It even briefly pops into the shot a couple of times. (00:10:45)
Trivia: In the season 5 episode "It Can't Be Five Years?" the woman playing Uncle Bill's secretary is Sebastian Cabot's daughter Annette.