Try viewing it as I did on HD at 106" and it still does not appear that that ball ever made contract with the white (goal) line.
And yes, I had the Steelers. That was some play.
I agree with the non-reversal if the replay wasn't conclusive. That's the rule.
I had it on TiVO watching it in High Def on my 56" screen.
I watched the play over and over in slow motion and in frame by frame and zoom.
It was extremely close. But he didn't get in.