The SEC has a network TV contract with CBS, a national cable deal with ESPN Networks and a conference branded network called the SEC Network, which is completely owned by ESPN.
CBS has the rights to 12-15 regular season games and the conference championship. Up to two of those games can be non-conference games. CBS will always have the top choice of SEC games on a weekly basis. When CBS does a doubleheader that includes a primetime game, CBS can choose the top two games on a given weekend. When they do a doubleheader that includes a 12pm game, it must allow ESPN to reserve two games before selecting their next game. Also, a school may not appear on CBS more than five times during the season, with some exceptions allowing for a sixth appearance. The SEC Championship Game is never part of the appearance count.
ESPN Networks has the rights to remaining SEC home games, primarily prime time telecasts. A content board will be established to determine which games will air on ESPN and the SEC Network. The plan is to air a tripleheader of games every week. There will overflow or alternate feeds of the network to allow for multiple games to air in a single telecast window.
Source: Florida, CBS Sports, ESPN PressRoom