NBC Sports Group has signed a four-year deal with Formula One for the exclusive U.S. media rights to the world's most popular global motorsports series.

The deal that begins next season will air four races on NBC. The remaining 16 races, and all practices and qualifying sessions will be on cable NBC Sports Network in what's expected to total more than 100 hours of annual programming.

The network's intent is to broadcast everything live, but is still working through a small number of scheduling conflicts. All 20 races will be streamed live on the NBC Sports Group's live-stream platform.

Cable network Speed had been the U.S. rights holder to F1 for the last 17 years, but told The Associated Press on Friday it had been outbid by another network.

Copyright 2012 by The Associated Press. All rights reserved. Material may not be redistributed.