
I did `Batman` for two reasons, one of which was the salary. The other was that, after the first few episodes, `Batman` became the in-thing to do. Everybody...would either play a villain or appear as himself in that cameo showcase where a celebrity would poke his head through the window of a building that Batman and Robin were climbing...Actually, we didn`t get as much money from the show as you might think, although we were paid decent money for the feature film version. The main impetus to continue appearing on `Batman` - beyond the desire to get some TV work - was that it was fashionable.
(imdb.com)