From 1973 until 1998, Byrne presented "The Gay Byrne Hour"—later "The Gay Byrne Show" when it expanded to two hours—on RTÉ Radio 1 each weekday morning. Since retiring from his long-running radio and television shows, Byrne has presented several other programmes, including "Who Wants to Be a Millionaire?", "The Meaning of Life" and "For One Night Only" on RTÉ One and "Sunday Serenade"/"Sunday with Gay Byrne" on RTÉ lyric fm. 