I see a turnaround in NBC's future. Last night's premiere of Medium attracted an extra-large 16.1 million viewers to finish a strong No. 2 to CSI: Miami. That's nearly three times the ratings LAX had been pulling in at 10 pm. The news wasn't nearly as good for Fox, which saw just 6.3 million turn out for the bad-karma magnet Who's Your Daddy?. The answer, by the way, was Satan.