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I agree with Westie, Hansen is on the money but it's world wide not just Twickers and SA. Both kiwis and Aus commentators go into fits about forward passes knock ons etc by the opposition and then flash up replays and then don't admit that they got it wrong and very rarely show suspected cockups by the home team.
I agree the ref should have as much help as possible to make his decisions but being influenced by directors and the big screen "no".