Salesman Roy Knable spends all his free time watching television, to the exasperation of his wife, Helen. One day, TV salesman Spike convinces Roy to buy a satellite dish offering 666 channels. The new addition to Roy's home entertainment system sucks him and Helen into Hellvision, a realm run by Spike, who is an emissary of Satan. For 24 hours, the couple must survive devilish parodies of TV programs if they want to return to reality alive.
John Ritter
as Roy Knable
Pam Dawber
as Helen Knable
Jeffrey Jones
as Spike
David Tom
as Darryl Knable
Heather McComb
as Diane Knable
Bob Dishy
as Murray Seidenbaum
Joyce Gordon
as Mrs. Seidenbaum
Eugene Levy
as Crowley
Erik King
as Pierce
Don Calfa
as Wetzel
John Destry
as Sackler
Susan Blommaert
as Ducker
