NBC It’s Official: Conan Out. Jay Returns to Late Night. Affiliates Relieved By Chris Ariens on Jan. 21, 2010 - 9:15 AMComment Around 4am this morning, the deal to release Conan O’Brien from NBC was signed. Jay Leno returns to “The Tonight Show” March 1. And NBC affiliates hope the viewers they lost to NBC’s Jay@10 experiment return.