Most of them are abominable, however once in a while; the spin-off out does the original. This is a list of spinoff shows, in which one character of the location/situation is carried across from one show to another. i.e. Frasier Crane from Cheers to 'Frasier' the series.
This is a list for spin offs from one television show to another; it does not include TV spin offs from movies or games; such a 'Timon and Pumbaa', from 'The Lion King'.
If you think of anything that needs to be added, please let me know; please include the original show and the cross-over character(s). Thanks.
NB: Special thanks to RB6K for his help and insane TV knowledge.