With nearly 23 million viewers tuned in, last Wednesday's American Idol finale — in which Kelly Clarkson triumphed over Justin Guarini — easily ranked as the week's most-watched show. Tuesday's penultimate episode attracted 18.7 million viewers for a second place finish. The one-two punch helped Fox win the week in every major ratings category — the first time the network has done so without the Super Bowl or World Series. In related news, 20th Century Fox has expressed interest in producing that much-buzzed-about American Idol movie. According to Variety, the pic would feature Clarkson and Guarini, and mix "real-life adventures with scripted hijinks."