Wikipedia's list of television spin-offs

Enjoyed skimming over this, as I’ve always been fascinated by the spin-off as a phenomenon. I guess we’ve already had a couple of spin-offs at Next New Networks; Fashion Enemy from Thread Heads, The Stack from Pulp Secret Report, and Q and Erik from Backyard FX.

The one thing about spin-offs is that they always only have one parent show. What if two shows got together and had a spin-off? I’d like to see that more. Take a couple characters from two different shows and combine them. The only two-parent spin-off I can ever think of is Law and Order: SVU, which featured Det. Munch from Homicide (played by The Belz) as a main character, and was the product of several previous crossovers between the Homicide and Law & Order shows.