Another Song for Christmas - S1-E13
Audio problem: At the very beginning the audio track of the outside noise at the dealership seems to have been laid wrong. It runs into the next interior shot and abruptly stops.
Highway to Heaven (1984)
1 audio problem in season 1 - chronological order
Starring: Michael Landon, Victor French
Visible crew/equipment: Near the beginning as the two men are pulling up in the field with the goats, there is a black screen reflected in the window of the truck. It looks like a block to keep the sun out of the shot.
Mark Gordon: I got the stuff! I got the stuff.
I Was a Middle Aged Werewolf - S4-E5
Trivia: When Mark is in the motel room watching TV, the movie he is watching is "I Was A Teenage Werewolf", starring a young Michael Landon, star of this show.