ABC and iTunes have partnered for "Million Hit Lowdown," a promotion designed to help viewers get caught up on their favorite shows, before the new seasons premiere, by offering free downloads of last season's finales of Desperate Housewives, Grey's Anatomy and Lost, as well as highlight specials for all three serials. Go to ABC.com for more.... NBC has announced plans to stream free, ad-supported episodes of its prime-time lineup, each accentuated by live premiere-night blogs from assorted producers and performers.