You can't if it's an old YouView box one but you can purchase them from online auction sites.
These boxes have been unavailable for 4 years now.
Whichever box you have have you tried new batteries and or a remote reset?
https://community.talktalk.co.uk/t5/Articles/TalkTalk-Remote-Control-Guide/ta-p/2204370
If it's a newer box please post back with the specific issue.
Thank you
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).
