Do you get the normal picture on the TV if you plug the aerial directly into the TV bypassing the box?
Is it all stations or just some? HD stations are more prone to fluctuations than SD ones.
If not you may have a damaged cable or aerial,bot you signal my be compromised . Check you local transmission by looking on Freeview website or digital TV site to see if there is any work going on on your transmitter
It could just be atmospherics which would normally clear in 24 to 48 hours, but if it persists then you could try a retune, but you could lose any stations you currently have.
If it's an aerial issue you will need to consult a local installer for a solution
In case it's the box, what model do you have?
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).
