Lost channels after retune - BT DTRT2110
Good afternoon. After retuning my BT Vision box last week, I have lost channels from 105 to 200 as well as others. I have tried a factory reset and, as advised by Freeview Help, a refund with aerial disconnected and then connected. Nothing works. The tuner on my Sony TV updated fine so it's presumably not the signal. I am in Cardiff and can see the Wenvoe transmitter mast from my house. Any help or ideas greatly appreciated.