9 4 ▁Masters ▁his ▁final ▁broadcast ▁for ▁CBS , ▁where ▁he ▁was ▁a ▁main st ay ▁for ▁over ▁ 3 0 ▁years . ▁ ▁Summer all ▁signed ▁off ▁the ▁broadcast ▁thus , ▁surrounded ▁by ▁the ▁other ▁CBS ▁comment ators ▁that ▁were ▁working ▁the ▁tournament : ▁ ▁August a ▁National ▁reg ulations ▁As ▁August a ▁National ▁G olf ▁Club ▁has ▁its ▁own ▁television ▁contract ▁with ▁CBS , ▁and ▁is ▁separate ▁from ▁the ▁P GA ▁Tour , ▁the ▁contract ▁car ries ▁different ▁reg ulations ▁than ▁other ▁tournament s . ▁ ▁Com mer cial ▁inter ru ptions ▁are ▁restricted ▁compared ▁to ▁most ▁television ▁programming . ▁A ▁typical ▁hour ▁of ▁television ▁in ▁day time ▁or ▁prim etime ▁car ries ▁ 3 8 ▁minutes ▁of ▁programming ▁and ▁ 2 2 ▁minutes ▁of ▁commer ci als ; ▁in ▁contrast , ▁August a ▁limits ▁the ▁time ▁allocated ▁to ▁commer ci als ▁to ▁four ▁minutes ▁per ▁hour ▁( as ▁opposed ▁to ▁the ▁usual ▁ 1 2 ▁or ▁more ). ▁This ▁is ▁subs id ized ▁by ▁s elling ▁exclusive ▁spons or ship ▁packages ▁to ▁three ▁companies . ▁In ▁the ▁immediate ▁after math ▁of ▁the ▁Mar tha ▁Bur k ▁controvers y , ▁there ▁were ▁no ▁commer ci als ▁during ▁the ▁ 2 0 0 3 ▁and ▁ 2 0 0 4 ▁broadcast s , ▁although ▁international ▁commercial ▁broad c aster s ▁continued ▁to ▁insert ▁their ▁own ▁commer ci als ▁into ▁the ▁coverage . ▁The ▁Play ers ▁Championship ▁began ▁impos ing ▁a ▁similar ▁rule ▁in ▁ 2 0 0 7 ▁and ▁the ▁U .