The Clock King's Crazy Crimes (1) - S2-E11
Visible crew/equipment: After the Dynamic Duo climb up the side of the building they enter through the window, and a chalk T-mark is visible on the floor where Batman stops when he sees Clock King sitting at a desk. Then, as Batman and Robin slide around on the floor coated with watch oil, when Clock King stands up we can also see the curved chalk mark on the floor by his feet. (00:21:50)
Answer: There wasn't one singular city used. It was shot in and around various locations in California, plus on a lot of sets and backlots. Ex. Some scenes were shot in LA, some in Pasadena, some in Santa Barbara, etc.
TedStixon