Visible crew/equipment: In the episode when David is working in the arcade, when the two old men drive off to kill the man in the other car, the entire cast and crew, as well as the camera and camera man are reflected in the car.
The Incredible Hulk (1978)
1 mistake in show generally
Starring: Bill Bixby, Lou Ferrigno, Jack Colvin, Michael Santiago
David Banner: Don't make me angry. You wouldn't like me when I'm angry.
Trivia: Bill Bixby refused to let his son watch the show as he was concerned his son would be scared seeing his father change into a green creature.
Homecoming - S3-E8
Question: What did David's mother die from?
Answer: An illness, although it's never stated what kind of illness. David blames his dad for her death because his father never took her to the hospital. So in all likelihood, her illness was never diagnosed anyways and David might not even have known what it was.
Bishop73