I loved watching Johnny Carson when I was a kid but then, we only had two stations and a 12” black & white tv. I have three adult children but I doubt they watch any late night talk shows at all.
I don’t remember 12” TV. I recall 13” and 17” and 21” and 23”, which may have been the largest possible then. I thought the shows were better then, but we were much easier to please. What Newton Minow called a “vast wasteland” is now definitely the norm.