On November 4, 1973, local San Francisco CBS affiliate KPIX-TV experimented with a ""simulcast"" in which the station kept switching back and forth between the network's broadcasts of a San Francisco 49ers game (against the Detroit Lions) and an Oakland Raiders game (against the New York Giants) that were being played at the same time, with frequent cuts to studio host Barry Tompkins. The station received many complaints from viewers, however, and the experiment was not repeated. This resulted in the NFL instituting new rules for markets that had two teams. The rules basically state that teams televised in two markets must play their games at different times in the day or week, and one of the teams must be on the road. For example an NFL schedule for a week might look like this: Oakland at Kansas City, 1 PM; New York Giants at Philadelphia, 1 PM; San Diego at San Francisco, 4:15 PM; and New England at New York Jets, 8 PM. See the article NFL on television for more information.