I have moved your post to this new thread, so you can get personal help from the community or moderators, so please watch this thread for updates.
As your problem is a broadband issue, I have moved your post to the BT Infinity board.
Plug the phone into the test socket and see if the noise is still there. If it is, then report it as a noisy phone line, not a broadband fault, as you will get it fixed much quicker.
Once the phone line noise is fixed, the problems with the TV will stop.
