There are about 2 dozen cameras available for the bunker to help with decisions.
The NRL subsequently invited journalists and other interested parties to view a large screen and other camera footage which clearly showed that an arm underneath the ball stopped the ball ever touching the ground thereby justifying the decision of the bunker to rule no try.
This footage was not shown on live TV.

I am a long time Penrith fan who went to the game and also watched a replay of the incident which I also thought showed the ball being grounded. The other camera footage changed my mind and I believe has silenced people saying Melbourne were robbed of a try.

Ps. On another RL forum I tipped Melbourne to win!

They've been doing this already on some nights this year. Just not for all 6 matches, We've had a central video ref in Media City (not the same one every week like I would prefer though) who gets a feed from all the different games, and refs it remotely. The only issue is that there can be a delay if two games need a decision at the same time.

Only Moore will know what he saw or more accurately (pun intended) what he thought he saw. Looking at some of the views on TV review Moore is on the far side of the potential grounding so I don't think he could see anything, I think it was a hunch.

IF there was a signal of Not Sure/No Idea I wonder what it would look like? A simple shrug has that air of 'couldn't care less' and there's enough arm waving from players protesting an infringement, I'd go with I'm a little teapot.

From the moment he (Moore) came running round for a better look I was convinced he guessed. Nothing since has changed my mind.

Why does the video ref have to be 100% certain? It just comes down to probability.

If someone is only 70% confident, but has seen the try scoring attempt multiple times, from multiple close-up angles and in slow motion, why would you then defer to someone who has seen it only once, from one angle, at a distance and in real time and with only a few seconds to make a decision?