American Idol once again proved to be unchallengeable Wednesday night as it drew 23.07 million viewers. The only program that it is doing poorly against is itself -- compared with its numbers during previous seasons, that is. Last year, for example, the program attracted 26.08 million viewers on the comparable night. On ABC, the series premiere of Better Off Ted proved disappointing as it attracted just 5.80 million viewers, despite much applause from critics (as well as significant dissent). Once again, NBC's lineup finished last for the evening with ratings chopped for the second week of The Chopping Block , which saw just 3.46 million viewers tune in.