Turner Classic Movies host Ben Mankiewicz with "Late Late Show" host James Corden. CBS News Before we get to why he's going, let's marvel in how it began: almost by accident.

When Paramount listed its slate of highly rated TV shows during its last earnings report, including "Tracker," the top rated series and "Matlock," the highest rated new series, it also listed Colbert's "The Late Show" as the highest rated broadcast late night show. "The Daily Show," also from Paramount, was the top late night show on cable TV.

David Letterman has finally given his opinion on the cancelation of The Late Show – the franchise that he founded.

The Late Late Show with James Corden airing Thursday, April 21, 2022, with guests Nicholas Cage, Aaron Paul and Sir Robert Winston. Terence Patrick/CBS via Getty Images

Parrot Analytics data finds "Last Week Tonight With John Oliver" leading the late-night pack in streaming revenue