Seems you are assuming wrong.
Seems you are right, very underhand i will be contacting them by online chat and opting out as the customer below has done so i also have a copy of transcript saved.
Confusion over £4 increase
I got the email, and thought I wasnít meant to have any increase in cost for the duration on my contract, turns out this only applies to broadband cost not tv part, thought this was a bit sneaky so contacted customer services. Then found out I could opt out but keep my current tv package. 80 channels, PVR, on demand players. So turns out all good for me but I think itís a bit underhand charging extra for services that donít apply to me and putting the onus on me to opt out. And I think saying in the email you are free to opt out of TalkTalk TV at any time suggests youíre going to lose all your tv which isnít the case. This will no doubt lead to people just sucking up the £4 increase. If anyone cares to disagree I have my customer service chat transcipt.