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The "bleak and impoverished entertainment landscape" while Johnny Carson hosted The Tonight Show, a 
: https://twitter.com/Delafina777/status/1388257875710017536
: https://twitter.com/Delafina777/status/1388257875710017536
Saturday Night Live, with actors including Chevy Chase, Dan Aykroyd, John Belushi, Jane Curtin, Garrett Morris, Gilda Radner, Bill Murray, Eddie Murphy, Julia Louis-Dreyfus, Billy Crystal, Martin Short, I could go on... https://en.wikipedia.org/wiki/Saturday_Night_Live
Star Trek: The Original Series, not terribly popular in its day but now of course a cult classic which launched perhaps the biggest media franchise of all time https://en.wikipedia.org/wiki/Star_Trek:_The_Original_Series
Monty Python's Flying Circus https://en.wikipedia.org/wiki/Monty_Python%27s_Flying_Circus
Hill Street Blues. As @TVWORTHWATCHING put it, the history of TV can be divided into before and after Hill Street Blues. The show changed TV forever. My family watched it religiously every Thursday at 9pm, followed by St. Elsewhere, another classic. https://en.wikipedia.org/wiki/Hill_Street_Blues
There are more, but this thread needs to end at some point, so let's move on to comedians.
George Carlin https://en.wikipedia.org/wiki/George_Carlin
George Carlin https://en.wikipedia.org/wiki/George_Carlin
Robin Williams https://en.wikipedia.org/wiki/Robin_Williams
Jim Carrey https://en.wikipedia.org/wiki/Jim_Carrey
Eddie Murphy https://en.wikipedia.org/wiki/Eddie_Murphy
Richard Pryor https://en.wikipedia.org/wiki/Richard_Pryor
(All of these comedians appears on The Tonight Show with Johnny Carson, most of them several times, and considered him a talented comedian.) What else is there, oh I know, how about ballet dancers?
Rudolf Nureyev https://en.wikipedia.org/wiki/Rudolf_Nureyev
Rudolf Nureyev https://en.wikipedia.org/wiki/Rudolf_Nureyev
Mikhail Baryshnikov https://en.wikipedia.org/wiki/Mikhail_Baryshnikov
Gelsey Kirkland https://en.wikipedia.org/wiki/Gelsey_Kirkland
Anthony Dowell https://en.wikipedia.org/wiki/Anthony_Dowell
Sylvie Guillem https://en.wikipedia.org/wiki/Sylvie_Guillem
Ballet not your thing? How about Opera?
Luciano Pavarotti https://en.wikipedia.org/wiki/Luciano_Pavarotti
Luciano Pavarotti https://en.wikipedia.org/wiki/Luciano_Pavarotti
Maria Callas https://en.wikipedia.org/wiki/Maria_Callas
Plácido Domingo https://en.wikipedia.org/wiki/Pl%C3%A1cido_Domingo
José Carreras https://en.wikipedia.org/wiki/Jos%C3%A9_Carreras
Leontyne Price https://en.wikipedia.org/wiki/Leontyne_Price
Not doing it for you? There was some passable composers as well.
Aaron Copland https://en.wikipedia.org/wiki/Aaron_Copland
Aaron Copland https://en.wikipedia.org/wiki/Aaron_Copland
John Cage https://en.wikipedia.org/wiki/John_Cage
