It would clear up the fact that she did in fact say all those things.

Because actually seeing it proves that it was real, and will make it easily forgotten with a few days. Not showing it means that the housemates will continue to doubt, be paranoid, bitch etc for the rest of the time in the house.

I was DESPERATE for them to show the videos to the housemates, more so after all her protestations!

xx

Simple - it was Helen said it.
Most others, it would have been shown

It's about time they gave Helen a difficult time. No one should have immunity without a little discomfort. So I am not getting at Helen. just the person that has immunity which happens to be her.