My wife is open to critisize certain aspects of the WTS, reads WT articles with a critical mind
she was very disturbed, even to the point of being depressed.
Anyway, I get the impression, her mind is slowly opening up towards information outside the WTS literature, otherwise she would have such a program just clicked off.
Inbetween, it sounds to me that your wife is already well on her way to becoming concious of the truth about 'The Truth'. However, you are right to be cautious. It will no doubt be devastating for her to realise her life has been based round a lie for so long and she will have to come to terms with it in her own time and at her own pace.
Just be there for her to provide the support she needs, then when you feel the time is right introduce her to this site and others like JW Facts - that is if she has not found them for herself by then!