Ackerman directed Seinfeld starting in its sixth season. He directed 89 episodes. He has directed every episode of The New Adventures of Old Christine. He has directed or guest directed such series as Everybody Loves Raymond, Becker, Cheers, Wings, Frasier, Two and a Half Men, Andy Richter Controls the Universe, Whitney and The Ellen Show. Ackerman also directed the pilot episode of the 2006 Fox series Happy Hour.
