Confirmed: 'Malcolm', '70s Show' to end

Veteran comedy series Malcolm in the Middle and That '70s Show are to finish at the end of their current seasons, broadcast network FOX has confirmed.

Malcolm, currently in its seventh season, has suffered from a move to Friday nights, where it averages less than 3.5 million viewers and ranks as the least-watched show in FOX's schedule.

"FOX is proud to have been the home of this groundbreaking comedy," said Peter Liguori, entertainment president at FOX. "From its innovative production values to its exceptional writers and cast, this series has helped shape the modern sitcom. We'll miss this hilariously loud and manic - yet somehow relatable and admirable - family.

That '70s Show, meanwhile, has also seen its audience drop since its main stars, Ashton Kutcher and Topher Grace, both quit the series.

"The reason That '70s Show has been such a smash hit is due to the talent: the actors, the writers, the director, and everybody else who helped make each episode so groovy," said exec producer Tom Werner. "Has it really been eight years?"

Malcolm will air its final episode Sunday, May 14 while That '70s Show will wrap the following Thursday, May 18.