Originally Posted by Ursa major
While I haven't yet seen Game of Thrones - March seems such a long way away - the fact that the viewers of the show have now seen the execution shouldn't really change anything. On the assumption that various characters (particularly Ned) aren't providing voice overs, the viewers have now seen what we already know those characters who were at the execution have seen.
If someone had stopped looking at the screen through their fingers and shouted, "That isn't Ned!" you can be pretty sure that someone in the book would have thought the same and either fought not to give the game away or demand to know what was going on.
So in that respect, Game of Thrones proves nothing: the book had a convincing execution; so did the TV show.
There was a Ned POV up to the point where he got executed. He died in Arya's POV
Arya only saw him from a distance and thought that the man up there didn't look like her father.
The executioner's platform was away from the rest of the onlookers, meaning that no one saw Ned up close.
Varys knew that Joffrey would kill Ned and set up a switch the night before when he visited him.
Sansa sees ned's head on the spike and doesn't think it looks like her father
Cat gets Ned's bones and says|those are not the bones of my husband"
The execution scene in GOT would only make a Faceless Man possible, if there was a switch.
In aDWD, Bran should know if his father is alive (one would think( when he becomes the Bran-tree.
still not 100% impossible, but very, very unlikely now