It's Only Rock and Roll - S3-E11
Visible crew/equipment: After Ralph walks into his house with Bill and Dak, when Bill explains to Pam that Dak will be spending the night, the T-mark is visible on the floor in front of Bill. (00:31:05)
The Greatest American Hero (1981)
1 visible crew/equipment mistake in It's Only Rock and Roll - chronological order
Starring: Michael Pare, Robert Culp, William Katt, Connie Sellecca, Don Cervantes
The Greatest American Hero (1) - S1-E1
Continuity mistake: While Bill and Ralph are in the car, John Mackie appears under the ship carrying the case with the suit. After John places the case in the car's trunk he walks back towards the ship empty handed, but in the last shot of John standing under the ship he's still holding the case.
Bill Maxwell: And so we went to NewFOUNDland to make friends with all the whales and a bunch of little fishies.