Last night’s “American Idol” results show scored such low ratings even I can’t believe it– a 1.6 in the key demo and just 7.07 million viewers. The demo was down from Wednesday’s 1.8 rating. But the total viewership is now threatening to sink below 7 million. This means around 900,000 people decamped from Wednesday to Thursday. What happened? Didn’t they want to know who was eliminated and who stayed? Crazy.