From a piece in the A.V. Club (linking to Entertainment Weekly), it turns out Lost originally had a fancier idea for their ending, with a major fight atop an erupting volcano. They didn't do it because it would have cost too much and, they later realized, would have looked pathetic next to the fight in Revenge Of The Sith between Obi-Wan and Anakin.
This does explain why the kids in the Dharma classroom are learning about volcanic activity. But one thing I don't like in the article is this:
You’d be forgiven for not remembering, though, because it was in season three, a.k.a. “The season that mostly sucks because the writers didn’t yet know if they’d be allowed to end the series on their own timetable.”
I like season three. I even like the mini-series at the beginning--that so many fans didn't go for--which has our heroes imprisoned on a separate island. And then when they get back to the main island, there's some amazing stuff. Okay, some episodes are weak, but we also get classics like "The Man From Tallahassee," "The Man Behind The Curtain" and, above all, the finale, "Through The Looking Glass," with an ending that was one of the greatest moments in television history.
Elsewhere, The Hollywood Reporter has an article on Bran's story in Game Of Thrones, where we get this:
There's also the unsettling prospect that Bran can do much more than witness major moments in history, but actually impact these moments with his abilities.
I suppose you can call it a "prospect," but I see no evidence that he has any impact on history. Some fans claim he has--they point to the flashback where Bran calls out his father's name and young Ned Stark seems to respond. Okay, but is there any reason to believe that Ned had lived this moment previously without hearing something?