TV CRITIC'S CORNER For Conan OâBrien, the end nears for a sometimes bumpy but long and creative ride in late night By Don Aucoin Globe Staff,Updated May 5, 2021, 2 hours ago Email to a Friend Conan O'Brien (pictured at right interviewing Anthony Anderson on a 2017 episode of "Conan") will leave late-night TV on June 24.Meghan Sinclair/Conaco LLC for TBS Iâll never forget the look on Conan OâBrienâs face as we sat in his ninth-floor office at 30 Rockefeller Plaza one night in 2003 and he described the humiliation he had experienced a decade earlier when he succeeded David Letterman as host of a late-night show on NBC.