I'm guessing, but perhaps people don't want to have anything that is time-sensitive when it comes to TV. Maybe I don't want to be up watching at that time, and

I'm guessing, but perhaps people don't want to have anything that is time-sensitive when it comes to TV. Maybe I don't want to be up watching at that time, and anything trying to be topically humorous suffers by being time shifted (smeared?). TV viewing habits, I thought, have changed - from episodic to binging on seasons? if so, what's the sense in watching >1 late-night show in a single sitting? And what's the point of the guests, then? They're hawking something which almost by definition is really stale compared to what's available on-line.