MotorTrend Network (formerly Velocity, HD Theater and originally Discovery HD Theater) is an American high-definition, commercial-based, cable and satellite television channel owned by Discovery Communications. The channel specializes in nonfictional programming, focusing on cars, sports related shows, and other programming targeted at men ages 18–54.
As of February 2015, approximately 62.3 million American households (53.5% of households with television) receive Velocity.
Starting November 23, 2018 Velocity was rebranded as MotorTrend Network.