Presumably the most popular part of the hit ABC series Lost was it's intricate and thorough theme song.
It is hard to say if any show has ever thoroughly encapsulated the entire series into the weekly intro as well as Lost.
The tune is catchy. The lyrics get stuck in your head. And, even for a show filmed in Hawaii, the images are stunning. Imagine seeing that in HD. Breathtaking.
There is little more that can be said about the theme to Lost. Perhaps the greatest thing to ever air on broadcast television.