What was first music video shown on MTV?

The first music video shown on MTV was "Video Killed the Radio Star" by The Buggles. It aired on August 1, 1981, at 12:01 AM Eastern Time, marking the official launch of MTV. The video was directed by Russell Mulcahy and featured the band performing the song in a futuristic, post-apocalyptic setting. The video was an immediate success and helped to establish MTV as a major force in the music industry.