Who’s watching “Big Brother 2”?

George Orwell’s “Big Brother Is Watching You” warning may sometimes ring true, but the reverse did not on Saturday night as the second episode of Big Brother 2 failed to attract ratings that were any larger than those for a mediocre summer rerun. The show’s 3.6 rating and 8 share in the 8 p.m. hour was identical to the numbers for a repeat of Walker, Texas Ranger a week earlier. (In fact, aside from a rerun of Cops on Fox, the show produced the worst ratings for any primetime show airing Saturday night.) By contrast, NASCAR racing on NBC proved to be a smash as it produced a roaring (for a summer Saturday) 5.9/12 in the 8 p.m. hour, then went on to finish with a 7.2/14 in its final half hour at 10:30 p.m. Earlier in the day, the Big Brother Web site showed five contestants naked in a hot tub, licking whipped cream off one another. The steamy goings-on were presented on the last day that the Web site was available for free. It now costs $19.95 to access it for the three-month run.