Silly question, but you do have the aerial in?
Is it the 4k box or the TV hub?
Try resetting it,4k box you press the button on the left hand side 5 times, the TV Hub you choose factory reset from the settings menu.
From the 29th of March our TalkTalk Community will move to peer-to-peer support and the TalkTalk team will no longer be here to support with queries. Don’t worry we still have plenty of ways to reach out if you need to speak to TalkTalk directly. For more details check out the link here:
How to contact TalkTalk Broadband - Help & Support.
