The most successful sitcoms of the 1980s were Roseanne and Cheers.

When the show made its debut in 1996, it was a rarity: a successful sitcom set on Long Island.

Seinfeld later went on to become one of the most successful sitcoms in television history.

"We've only been on three times," he said about his first successful sitcom.

The key to a successful sitcom is variety and character-driven humor like the running gag or inside joke.

He is best known for his adult career as a director and producer of several highly successful British sitcoms.

She also made a guest appearance on the successful sitcom Living Single during its first season.

In 2002 the successful sitcom Kath and Kim began its run.

This low output means there is less chance of a successful sitcom being produced to offset the failures.

Despite its different format, the Letterman show has a long record as a hatchery for successful sitcoms.