NBC has had a big hit with its new show "Heroes" on Monday nights. The series, about a bunch of people with super powers, appears to be appealing to the same group of young people that have flocked to movies based on comic books during the past few years.Through mid-October, "Heroes" has pulled in about 13.5 million viewers a week. While that's only good enough to make the show the 27th most watched overall, the numbers are significantly better with 18-49 year-olds. "Heroes" ranks 11th with that demographic. NBC has already announced that it has picked up "Heroes" for the full season.