Quote ="Conroy"An interesting idea would be to allow the Captain to ask for a review similar to cricket. The ref gives a try without the screen, he gives a ball steal rather than a knock on etc etc.
Only problem is of course that the game could last years.'"
In the NFL (where the video review was first introduced, way before it came to RL), the head coach of each team is allowed 2 challenges to reviewable decisions. If they fail their challenge, they are charged a timeout, which is quite a good commodity in American Football. Only similar forfeit I could see in RL would be the loss of a substitution.
The NFL changed the system they first introduced because of time issues. At one time, there could be many reviews each game, slowing it down further than usual.
Also, in their game, it is the game referee that reviews the video, in a little booth on the touchline, rather than an additional official like we do.