CBS won with Ghost Whisperer (1.9), Medium (1.8), and Numb3rs (1.8). That was probably the series finale of Numb3rs, and the ratings were bad at all.
NBC was second with Who Do You Think You Are (1.8) and Dateline (1.7, 1.8).
ABC was third with Supernnany (1.4, 1.2) and 20/20 (1.7).
Fox was last with a repeat of House (1.0) and Kitchen Nightmares (1.7).