I'm not a big rugby fan, but rugby has it right, a camera and microphone on the ref, and utmost respect from the teams, they do what he tells them to do, or they are put in a sin bin for 10 minutes to think about it.
And they send any close calls to the TV ref who takes about 20 seconds to view it from all angles. And if he still gets it wrong, it proves it is a mega tough decision where 6 TV angles are inconclusive, so that is fair enough really.
What angers me most in football is when a decision is clearly wrong but I am not angry at the ref, that poor sod sees it once, whilst running, whilst wiping sweat out of his eyes, he has no chance really, I'm amazed they get so much right. I am angry at the lack of TV refs; we've all seen it is the wrong decision on TV within 10 seconds, meanwhile the next 75 minutes of the game are perfection.