Which box to you have?
Have you tried returning the box? First do it with the aerial taken out of the box. This should give you 0 channels but will remove any residual memory the box may have. Now replace the aerial and try again.
Having channels only in the 800 range often signifys an aerial issue. Do you get all channels if you put the aerial directly into the TV, by passing the box?
If you can try this and let us have the outcome and box type, we can then offer further assistance.
Please remember to mark Solved Posts with Best Answer. Doing so helps other customers and saves TalkTalk's Support Team time by only looking at unsolved topics. Thanks, Steve (a fellow customer).
