DirecTV is currently offering a free preview of Universal Sports Network on Channel 625 through Sunday, February 15. The network broadcasts a variety of Olympics-related team and individual sports such as triathlons, figure skating, volleyball, cycling, snowboarding and rugby.
Universal Sports Network is part of the DIRECTV SPORTS PACK that includes channels such as ESPN Classic, beIN SPORT, and Outdoor Channel, as well as over 30 regional sports networks such as Comcast SportsNet Bay Area, Madison Square Garden, and FS West.
Unfortunately, the channel is currently only available in standard definition quality. Contact DirecTV and ask them for Ultimate Sports in high definition.