Probably far more people were preparing their barbeque grills Sunday night than watching television. Virtually everything on the air was a repeat, with the exception of CBS's Big Brother , which averaged 5.5 million viewers. The only show that grabbed a bigger audience was a repeat of 60 Minutes , which attracted 6.7 million viewers. Every other program on Sunday drew fewer than 4 million. CBS came out on top with an average of 4.9 million viewers, followed by NBC with 3.1 million. Fox came in third with 2.4 million, just squeezing by ABC with 2.3 million.