Metaphor corner
Meta 4 corner

Two lists of topics
Let the guest chose one from each column
One column sports/topical one column encyclopedic.

I don't believe it's a good idea in general to script dialogue. It takes a really strong actor to be able to use someone else's words as if they were their own, and/or they need to be very well written to be superior.

A sketch comedy show with kid cast about a baseball team but don't get actors and make it real.
Movies spend so much money to do something real just so they can pretend, just do it for real!