It might be me, but LOST always felt like a freeform RPG made into a TV show.
GM: Ok, you are in a plane crash, you are on a deserted pacific island, what do you do.
Player 1: I stand around and go "It is a miracle"
Player 2: I was a prisoner being transported, so I am looking for
anything that would show that i am a Prisoner and eliminate it.
Player 3: I am a con-man, so I am out to con people
Player 4: Wait, I am playing a con man too
player 5: I can't find my son, so I will scream "WALT" as loud as I can
player 6: I am a doctor, so I umm..patch people up and look for a radio.
GM: Ok then, when looking for a radio, you meet a bear. A POLAR BEAR.