^1350 was the height of the parapet on the Twin Towers, through adjustments that ended up as 1358/1364 on the buildings as constructed. The rest of the height up to 1362/1368 was a slight mound-like shape of the roof cause by the hat truss, which was modified to this design when the PA agreed to relocate broadcasting facilities to the WTC when concerns grew about "ghosting," which is when you get the signal from ESB, then a split second later you get a reflection off the WTC resulting in a slight double image. With digital TV, you don't have nearly as much of a problem with this due to built-in error correction, which is why you haven't heard much about this now.
Anyway, since both towers were built with this same hat truss (which also connected the famous perimeter columns to the central core), the old 2WTC was fully able to mount an antenna as large as the one on 1WTC.
The new tower 1 is 1368 to the parapet, which means it does look slightly taller than the original tower when placed side by side, even when you exclude the directional broadcasting equipment.
And some new stuff:
From Top of the Rock
From Empire State, outdoor deck.
And because, why the hell not, the 102nd floor as well.