WHEN MTV launched in 1981 as the world’s first 24-hour rolling music channel, it ushered in an exciting era for pop culture.

The most 1980s TV commercials, with rock stars, from Michael Jackson shilling for Pepsi to Genesis hawking beer.

MTV as we know it is over. After more than four decades, the network is shutting down several of its music video channels.

BET has put the iconic music show on indefinite hiatus, eliminating a key platform for artists often ignored by the Grammys.