Is the free HD bolt-on for six months available for existing BT TV customers or just new ones? The website makes it look like existing subscribers can get the bolt-on free for six months, but when going through the order process, no discounts are shown (plus it adds again the Entertainment package that I already pay for, at £7, though I get it for £5 for six months and that does get reflected on my monthly bill).
I'm not massively desperate for the HD bolt-on as the picture quality on SD extra channels such as BT Sport and Comedy Central is decent, but if I can get HD quality at no extra cost then why not? But the website is confusing and I don't want to sign up to something that isn't free after all! £3 extra a month isnt a fortune, I know, but if I was desperate for the HD bolt-on I'd have ordered it when I first became a BT TV subscriber in July.