Fox and ABC duked it out Tuesday night, with Fox's House scoring a 10.7 rating and a 16 share in its season premiere at 9:00 p.m. It also drew the largest number of 18-49-year-old viewers for the night. But ABC's 90-minute Dancing With The Stars registered an 11.8/18 at 8:00 p.m. and peaked in its final half-hour at 9:00 p.m. with 13.0/19. Also at 9:00, the series debut of the critically praised Reaper (it received by far the best reviews of any new series of the season) on The CW only managed to score a 2.1/3.