During the 1970s, the increasing costs began to drive some of the traditional USAC car owners out of the sport. The dominant teams became Penske, Patrick, Gurney, and McLaren, all run by people with road racing backgrounds. There was a growing dissent between these teams and USAC management. Events outside Indianapolis were suffering from low attendance, and poor promotion. The Indy 500 was televised on a same day tape delayed basis on ABC, however, most of the other races had little or no coverage on television.