Tales from the Darkside

1984 · Director, Writer

Monsters

1988 · Writer

The Muppet Show

1976 · Writer

The Dark Crystal: Age of Resistance

2019 · Writer

Masters of the Universe

1987 · Writer

The Dark Crystal

1982 · Writer

Supergirl

1984 · Writer

The Very Best of the Muppet Show

1999 · Writer

The Very Best of the Muppet Show: Volume 3

2001 · Writer

Dealing: Or the Berkeley-to-Boston Forty-Brick Lost-Bag Blues

1972 · Writer

Reflections of 'The Dark Crystal'

2007 · Acting

Nate and Hayes

1983 · Writer

Gonzo Presents Muppet Weird Stuff

1985 · Writer

Cry Uncle!

1971 · Writer, Acting

The Yattering And Jack

1987 · Director

Martians Go Home

1989 · Director

The Very Best of the Muppet Show: Volume 2

1999 · Writer

Fore Play

1975 · Writer

Running Scared

1980 · Writer

Between Time and Timbuktu

1972 · Writer

Of Muppets & Men

1981 · Acting