Answer
Yes, Romero worked on the 1966 TV series Batman, which was a hit in the 1960s. The series starred Adam West as Batman and Burt Ward as Robin, and was set in Gotham City. The show was known for its campy humor and over-the-top action sequences. Romero played the role of the Joker, one of Batman's most iconic villains. The series was a success and ran for three seasons.