A whole lotta viewers  an average of 10.5 million, to be exact  opted to do time with Fox's Prison Break premiere instead of sampling some (preseason) Monday Night Football. Prison Break not only handily won its 9-to-10 pm time period, it also was the evening's No. 1-rated program among adults 18 to 49 and inmates doing 15 to 20. But just in case you missed it, Fox is encoring the two-hour debut Thursday night.