Instagram/Conan O'Brien & Liza Powe Celebrity Conan O'Brien reveals the secret to his long marriage: separate bathrooms. The comedian credits this for keeping his relationship strong since 2002. April 18, 2026 AceShowbiz - Conan O'Brien recently shared a humorous yet heartfelt update on what he believes has been a key factor in sustaining his marriage to Liza Powel O'Brien. Speaking shortly after hosting the 2026 Oscars, the comedian revealed that having separate bathrooms played a crucial role in keeping their relationship strong.