Seinfeld used to be a television program.
Seinfeld is an American sitcom that originally ran for nine seasons on NBC , from 1989 to 1998 .	NBC	NBC	sitcom	sitcom
The National Broadcasting Company -LRB- NBC -RRB- is an American English language commercial broadcast television network that is a flagship property of NBCUniversal , a subsidiary of Comcast .	television network	television network	English	English language	NBCUniversal	NBCUniversal	Comcast	Comcast	English language	English language	commercial broadcast	commercial broadcasting
Sitcoms originated in radio , but today are found mostly on television as one of its dominant narrative forms .	radio	radio	television	television	narrative	narrative
