ABC made the pilot episode of No Ordinary Family available on their website. I just finished watching it. In a nutshell: good show.
The premise of the show is that a family on a plane flight over a rain forest in Brazil crash lands in a lake full of glowing particles. Once they return home, they slowly discover each of them has developed a superpower. Dad is super strong, can catch bullets, and can jump very high and far. Mom has superspeed, capable of breaking the soundbarrier on foot. The daughter can hear the thoughts of other people. The son, who during the episode we find out probably has a learning disability, in the last few minutes of the episode seems to become supersmart, the math problem on the chalkboard at school actually showing him the steps to solve the math problem.
It's not just a show about a family of superheros though. It's a drama about the relationship between the family. The parents have grown apart as their careers have stagnated or developed. The kids sense this and have their own teen problems as well. Adding superpowers to the mix isn't going to make their lives any easier, or heal their family wounds any faster.
The pilot episode of No Ordinary Family serves as a perfect introduction to this family and their place in the world they live in.
I'm looking forward to more of this show when it finally hits the airwaves.