This isn’t quite about riffing–more the extended world of host segments–but seemed maybe better here than off-topic.
If you spent time watching TV in the 60s or 70s or just read about those exciting times of laying on shag carpets and eating pop rocks and coca-cola, you know about those local host segments during the creature feature (Elvira, mistress of the night, most famously) or children’s programming blocks. These were the progenitors of the skits on the Satellite of Love. I remember that a Baltimore station had Captain Chesapeake, New England had Bozo the clown, and DC had Capt. 20 (sort of a Vulcan).
The DC station also had Count Gore De Vol for the B movies, played by the same guy as Capt. 20. I was shocked and delighted to find that the Count is still doing his thing online, complete with studio segments in costume. These things are great for anyone interested in B movies; just BYO riffs!
Oh–cool! Looks like he started local in 1979 as the horror host for a station in Chicago as “Son of Svengoolie” (he succeeded the original Svengoolie). He’s looking healthy. . .