Your relationship with an agent has got to be mutually beneficial. If you can't help their careers, then they're not going to be interested.

In 1972 Steinberg wrote and starred in The David Steinberg Show in the United States. Steinberg directed several films and episodes of many of the most successful television situation comedies of the last twenty years including Seinfeld Friends Mad About You Curb Your Enthusiasm and more than 35 episodes of Designing Women.

He appeared on The Tonight Show Starring Johnny Carson more than 130 times (second only to Bob Hope in number of appearances) and served as guest host 12 times the youngest person ever to guest-host. David Steinberg (born August 9 1942) is a Canadian comedian actor writer director and author.