Backdoor pilots are notorious for failing -- they fail to become a series or they fail as an episode of a show.

What happens when you combine motorcycle cops, John Rhys Davies and ninjas? You get "Force Seven," the awesomely cheesy 1982 CHiPs episode that tried to launch a spinoff about ninja cops. Get the scoop on "Force Seven" in the latest episode of Behind the...

You don't have to be a detective (or a mystery novelist) to see why these seven spin-offs of MURDER, SHE WROTE didn't succeed.