When Joanie loved Chachi it lasted exactly 17 episodes. When Frasier loved Niles it lasted even longer-ish.
When Skeletor remembered he had a mentor that had long ago been locked on another planet with He-Man's sister, it was like a steel-toed boot to the nethers. But that's just the risk of a spin off, now isn't it? You think you've got a great product, but then Hordak shows up and kicks you in the jellies.
Unless the spin-off of which you speak belongs to Cleveland Brown of Family Guy fame. He, apparently, is on the threshold of carrying his own show. where it this going to end?
For more on this discussion, visit Heckler Spray