DIRECTV will continue offering a free preview of Universal Sports through this coming Tuesday, April 23 (the preview started on April 14). The NBC-owned network broadcasts a variety of Olympics-related team and individual sports such as triathlons, figure skating, cycling, snowboarding and rugby. Universal Sports is located on DIRECTV Channel 625.
Unfortunately, Universal Sports is only available in standard definition on DIRECTV, although the network broadcasts in 1080i (HD). Contact your TV provider to ask about getting Universal Sports in HD.