Hi Karl,
thanks for the post.
We only have sky sports as a free boost so I can't check other sky channels I'm afraid. All other functions are working though (iplayer etc)
I'm using a netgear router and the talk talk box is connected via a powerline.
Thanks for trying a change to my line but unfortunately I'm away until New Year's Day so won't be able to try anything until then. I'll let you know how I get on once I've re-booted everything - do you want me to contact you directly rather than this post?
Cheers,
Jonathan