Conan O’Brien launched his late-night show on TBS in November 2010. Fifteen months later, the show was extended though April 2014. Now TBS is making a big statement that O’Brien is there to stay, renewing Conan through 2018. With Jay Leno retiring this spring and David Letterman set to follow him, O’Brien next year will become the new doyen of late night where he recently marked his 20th anniversary. Year to date, Conan is averaging a modest 862,000 viewers in Live+7. His strength is in younger viewers, topping a number of late-night competitors among adults 18-34 including The Late Show With David Letterman, The Late Late Show With Craig Ferguson, Jimmy Kimmel Live!, The Arsenio Hall Show, Chelsea Lately and Watch What Happens: Live. Conan also has been a digital juggernaut, with O’Brien counting 10.7 million Twitter followers, more than any other late-night star on cable. Last year, O’Brien expanded his late-night presence on TBS with a companion, The Pete Holmes Show, which is produced by his company Conaco.