NASCAR on TNN was the name of a television program that broadcast NASCAR races on The Nashville Network (now Spike).
TNN started showing races live in 1991, but it had aired taped coverage of a few Winston Cup races in the 1980s on its American Sports Cavalcade program.
TNN had a self-operating and self-promoting sub-division called TNN Motor Sports, and aired races produced by that division from 1991 to 2000. Under the TNN Motor Sports umbrella, NASCAR series races (including those of the then-Winston Cup Series and Busch Grand National Series, as well as the Craftsman Truck Series) were the most prominently featured, but races of smaller circuits such as the International Motor Sports Association IMSA Sports Car Series, ASA, USAC, the NHRA, and ARCA were also showcased, as was motorcycle and speedboat racing.
In 1995, the motorsports operations were moved into the industrial park located at Charlotte Motor Speedway in Concord, North Carolina, where TNN had purchased controlling interest in World Sports Enterprises, a motorsports production company.
Also by 1995, Westinghouse Electric Corporation, who at the time owned the CBS networks and had an existing relationship with TNN through its Group W division, purchased TNN and its sister network CMT outright to form CBS Cable, along with a short-lived startup network entitled Eye On People (now Investigation Discovery). TNN's ties to CBS allowed it to carry CBS Sports' run overs, which happened during a NASCAR Busch Series race at Texas Motor Speedway in 1999.