2012 SUMMER OLYMPICS
NBC, 8:00 p.m. ET
Track events will dominate NBC’s prime time coverage in tonight’s taped replay package, led by a big build-up for the men’s 4x400m relays, and the women’s 4x100m. And earlier in the day, at 4 p.m. ET, the USA men’s basketball team plays its semifinal match against Argentina. Watch it live on NBC Sports Network.