On December 29, 1965, CBS acquired the rights to the NFL regular season games in 1966 and 1967, with an option to extend the contract through 1968, for $18.8 million per year (in sharp contrast to the $14.1 million per year it paid for the rights in 1964). On February 14, 1966, the rights to the 1966 and 1967 NFL Championship Games (the Ice Bowl) were sold to CBS for $2 million per game. 1967 also marked the last year that CBS had separate commentator crews for each team for about 90% to 95% of their NFL games.