I'm not sure this is board appropriate, but I think it's close. This is a video I edited, the third in a series of talk show wars. This one is about Joan and Johnny's falling out. The story starts in the '60s and ends in the '10s but the bulk of it takes place in the '80s, and is centered around the launch of Joan's Late Show in 1986.

https://youtu.be/PVyECyPYwaA

Did anyone watch this stuff at the time? My parents watched Carson so I was aware of it. I have vague memories of Joan's Late Show, I don't remember her on The Tonight Show. I have more vague memories of Arsenio hosting Late Show followed by Ross Schaeffer. I didn't really start watching Carson until about 1990, I think.