Rating news for ‘All Hell Breaks Loose, Part Two’

From TVGuide.com: "In the season's final face-off between Thursday's powerhouses, both Grey's (21.53 mil) and CSI (20.2 mil) rebounded from last week's nadirs, surging 2.4 and 1.6 mil, respectively. Those mighty gains came at a cost, seemingly, for Supernatural, which dipped 110 thou to end Season 2 with a low of 2.74 mil."