Class Act Conan O'Brien Tells Audience to Watch David Letterman Instead 70.19K Gabrielle Bluestone 05/20/15 11:52PM Filed to: Conan Conan Letterman late night conan o'brien david letterman Conan O’Brien’s response to sharing a time slot with David Letterman’s last show was funny and cool as hell! Sadly, there’s no word on whether his viewer actually changed the channel, but that’s neither here nor there.Contact the author at gabrielle@gawker.com.