Heartbeat Productions ended in 1984.
Heartbeat Productions was created in 1978.
Zenith Productions ended in 2006.
Desilu Productions ended in 1967.
Tandem Productions ended in 1986.
DNA Productions ended in 2006.
Viacom Productions ended in 2004.
Skellington Productions ended in 1996.
Marvel Productions ended in 1997.
Headfirst Productions ended in 2006.
Henderson Productions ended in 1984.
Sunbow Productions ended in 1998.
Bullfrog Productions ended in 2004.