Velocity (formerly HD Theater and originally Discovery HD Theater) is an American high-definition, commercial-based, cable and satellite television network owned by Discovery Communications. The network specializes in nonfiction programming, focusing on cars, and also sports (particularly motorsports), leisure, and other topics targeted at men ages 18 to 54. As of February 2015, approximately 62.3 million American households (53.5% of households with television) receive Velocity.