▁commercial ▁broadcast ▁networks ▁in ▁the ▁United ▁States . ▁The ▁schedule ▁covers ▁prime ▁time ▁hours ▁from ▁September ▁ 2 0 0 7 ▁through ▁August ▁ 2 0 0 8 . ▁The ▁schedule ▁is ▁followed ▁by ▁a ▁list ▁per ▁network ▁of ▁returning ▁series , ▁new ▁series , ▁and ▁series ▁can ce led ▁after ▁the ▁ 2 0 0 6 – 0 7 ▁season . ▁The ▁schedule ▁was ▁affected ▁by ▁the ▁ 2 0 0 7 – 0 8 ▁Writ ers ▁Gu ild ▁of ▁America ▁strike . ▁ ▁N BC ▁was ▁the ▁first ▁network ▁to ▁announ ce ▁its ▁fall ▁schedule ▁on ▁May ▁ 1 4 ▁followed ▁by ▁ABC ▁on ▁May ▁ 1 5 , ▁CBS ▁on ▁May ▁ 1 6 , ▁Fox ▁and ▁the ▁C W ▁on ▁May ▁ 1 7 ▁and ▁My Network TV ▁on ▁August ▁ 2 4 . ▁ ▁This ▁was ▁the ▁first ▁TV ▁season ▁where ▁N iel sen ▁Media ▁Research ▁kept ▁track ▁of ▁D V R ▁ratings ▁( live ▁plus ▁same ▁day ; ▁C 3 ; ▁live ▁plus ▁ 7 ) ▁ ▁New ▁series ▁are ▁highlight ed ▁in ▁bold . ▁ ▁All ▁N BC ▁programming ▁from ▁August ▁ 8 , ▁ 2 0 0 8 ▁to ▁August ▁ 2 4 , ▁ 2 0 0 8 ▁was ▁pre - empt ed ▁for ▁coverage ▁of ▁the ▁ 2 0 0 8 ▁Summer ▁Olympics . ▁ ▁Each ▁of ▁the ▁ 3 0 ▁highest - r ated ▁shows ▁is ▁listed ▁with ▁its ▁rank ▁and ▁rating ▁as ▁determined ▁by ▁N iel sen ▁Media ▁Research . ▁▁