Sorry beforehand if this topic was posted but I am curious, what will get you to watch a spinoff?

A. The character or characters from the mother show?

B. The plotline of the spinoff?

C. Both

D. Other.

I would say the characters. Sadly the spin-offs rarely measure up to the original, but it worked for several shows, including the Jeffersons. I think it worked mainly because they used the same characters/cast members and just put them in a new situation.

Sequels and spin-offs just aren't believable to me if they don't use the same characters for that little bit of continuity.

The downside is that audiences who fell in love with a particular show are going to expect that same kind of quality from the new show.

I think both answers here would work, though. The plot has to be believable as well.

Both based on whatever the spinoff is being played successfully in full differ from its parent show

Both. In other words, you can take a character from the mother show and make that one better than the mother show.