We’re just hours away now from the (hopefully) phenomenal Season 4 premiere of Lost. So, from wheelchairs to sea urchins, here are the five greatest moments from the show’s past three years.

Don’t tell me what I can’t do!!!

This was the moment that Lost kicked into high gear. Up until this episode, it was just some sci-fi-ish drama that used a flashback device. But in Walkabout, the show jumped to a whole new level. The history of Locke, who we had known as the ultimate boar-hunting hero, was revealed, and we realized that this show was infinitely deeper than we ever had thought.

So I dug up that grave…

Benjamin Linus is arguably one of the coolest characters on the show. But when we first met him, we knew him as Henry Gale from Minnesota. Viewers, such as myself, were conflicted over his true allegiance. He claimed to be a good guy, but there was that subtle, brooding evil that you could just feel pouring off of the guy (a sure sign of Michael Emerson’s brilliance). The truth was revealed in one of the most fantastic moments of the show.

Help…me…

Another one of those ground-shaking moments…literally. Ben had described Jacob as this mastermind that was essentially controlling everything that happened on the island, and he followed him with such dogged determination that he either was blatantly lying, or had gone off the deep end completely. The truth was far more shocking…

We have to go back!!!

The turning point of the show. The Season 3 finale was so jarring that it took several minutes after the show for me to grasp it’s full significance. For the past three years, Lost had stuck to the very specific flashback formula, but that changed with Through the Looking Glass…

Pee on it!!!

And finally, what is easily the greatest moment in Lost history…Hurley and the sea urchin…

So there you have it…the greatest moments in the history of Lost. Any I’ve left out? What would you choose?

Lost returns tonight at 8/7c with a one-hour recap episode, and the season 4 premiere at 9/8c on ABC.