VH1 Top 20 Vieo Countdown is a weekly television show on the VH1 cable television network in the United States. The long-running series began in 1994 as the VH1 Top 10 Countdown, as part of VH1's "Music First" rebranding effort. Since then, the series has been a consistent weekly institution on VH1, and it is now the main source of music video programming on the channel.