Large letters appeared on-screen beneath O'Brien commanding viewers to "Turn on Dave"

Credit: Jeffrey R. Staab/CBS

Like every younger-generation late-night TV host, Conan O’Brien is indebted to David Letterman. And O’Brien dedicated a portion of his show Wednesday night to making sure his audience knew it, personally thanking Letterman for his work in the field the pair have made their home for years.

“If you have ever liked any silly or stupid thing that I’ve done on TV over the 22 years, you must know that it probably never, never would have happened if it weren’t for Dave,” O’Brien said. “We will not see a man of his talents and comedic integrity again in our lifetimes,” he added.

O’Brien closed his show with comic Patton Oswalt, and as the clock struck 11:35, the pair ordered everyone watching to switch the channel over to Letterman’s final broadcast, while white text reading “Turn on Dave” appeared on the screen.

For 33 years, we’re really glad people did.