I'm a Letterman guy. I was just the right age, when Dave had his
NBC show, to get what he was doing--to see him as a sort of rebel,
spitting in the face of the suits, the corporations, the network,
tradition, and the idea of what was "cool." "Late Night" was appointment television for young people in the Eighties.
But, it turned out, that
what Dave really wanted was to be seen as worthy to fill the shoes of
his own idol, Johnny Carson, and when that didn't happen (I mean, he had
bitten the hand that fed him for a decade by that point), he left in a
huff and went to CBS, which rolled out a red carpet for him, buying and
refurbishing the Ed Sullivan Theater so he could have his own, more
respectable show, airing opposite "The Tonight Show," now hosted by Jay
Leno, a man Dave had come up with in the industry, who he had called a
friend, but now considered an enemy.
I'm
getting somewhere with this little history lesson. That was 1993--a
whole lifetime ago--when "The Late Show" began. And it was shinier,
more corporate, more professional, than "Late Night" had been. David
Letterman had grown up.*
But when his CBS show was at its best, it
reminded you of what you so loved about Letterman's first show, only
with a (slightly) more respectable veneer. Age does that to a person, I suppose. By the time Dave went off
the air in 2015, he was the old guard, Seth Meyers was running his old
show (now produced by Lorne Michaels), Jay Leno had given way to Conan
O'Brien, then took "The Tonight Show" back, and had since passed it to
Jimmy Fallon. And Kimmel had been doing a live show on ABC since 2003.

And
after Dave came Stephen Colbert, who, despite being a hundred times
more straight-laced, traditional, and respectable as Letterman, made a
powerful enemy in one Donald Trump (who he invited as a guest on his show in
2016, and when asked why--when he was so negative toward him--said, "I wanted to be able to say I'd had the (very) last president of the United States on my show."), and after calling out the payout CBS gave the Trump
administration when it would've been easily winnable in court as the
bribe ("big fat bribe" were his words) that it was, his show suddenly became too expensive to produce (despite being the most-watched late night talk show) and
was announced to be ending in May of 2026.

Well,
that day has come (and probably gone by the time I finish this post),
and Colbert had some great guests in the days before his finale, from
Steven Spielberg to Barack Obama, from John Stewart to his fellow late
night hosts Jimmy Kimmel, Seth Meyers, John Oliver, and Jimmy Fallon.
And, of course, he just had Letterman on, to throw things off the roof of the
Sullivan Theater in an episode that would have thrilled the eleven year
old me to the core.**
And then, Colbert too
was out of there. The show is gone, as there's not a host coming after him.
And that, like I said that the start, is that--the only reason left to
watch CBS, walking out the door. Please lock it behind you, would you?
*At
least as much as he was capable. Conan O'Brien took over "Late Night,"
and was really Dave's successor, bringing his own dorky outsider
perspective, only with less cynicism, an earnest wish to be liked that
Dave had (whether feigned or not) had never aspired to. Eventually, he too would be screwed by the network, though none of the folks that slighted Dave were still in power there, just going to show that there's only one bitch out there, a bitch with many faces.
**Colbert
claimed CBS/Paramount had given him a big wedding cake in honor of the
show, with "The Late Show 1993-2026" written on it, which he tossed off
the roof and the camera watched explode on the pavement below in ultra
slow-motion. And the years melted off me.