Longtime surname on late-night TV (6)

I think it could be either:

obrien

meyers

(Other definitions for obrien that I've seen before include "Flann -, Irish novelist" , "Conor Cruise, Edna, Flann or Vincent" , "Kate . . . . . ., Flann . . . . . . (1'5)" , "'Kate ..., Edna ..., (1'5)'" , "I be Ron, strangely, with this surname" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.