In media, a spin-off is a radio program, television program, film, video game or any narrative work, derived from already existing works that focus on more details and different aspects from the original work.

What is a spin-off TV series?

A spin-off in television is a new series containing characters or settings that originated in a previous series, but with a different focus, tone, or theme. ... For example, the character Avery Ryan appeared in two episodes of the Las Vegas-based CSI: Crime Scene Investigation before the premiere of CSI: Cyber.

Are spin-off series canon?

So are spin-offs canon? Kind of. It works a lot like how Star Wars has their expanded universe, anything can be proven canon until otherwise stated or proved not by superior source material .