Actually, numbers can be taken into context and out of context. So you're saying if Alias was shown at 3am on a Tuesday morning and nobody watched, it was because nobody is interested in the show?
Alias had massive competition, a tough time slot where viewership is down from the 9pm and 10pm timeslots, and it had no lead in. Take that into consideration.
Right now you're just looking and saying "8 million = bad". Well, no. Alias exeeded ABC expectations. It did extremely well based on the CIRCUMSTANCES.
So yeah. You can say that "Prophet Five" was the least-watched premiere. But I'm saying that it did very well.