A spinoff can try a few different strategies to be successful. They can be a carbon copy of the original in a new setting, like Saved By The Bell: The College Years. They can introduce a tonal shift by focusing on one character, like Frasier. Or you can use the old “backdoor pilot” strategy to debut a completely off-the-wall premise (Mork & Mindy, as we all know, was spawned from an episode of Happy Days).
