Not all HD channels affected,SD channels seem ok,will try reboot.Some programmes seem jerky at different times,almost pixelated,but only a minor niggle. HDMI cable should be ok only installed last summer but the outside cable entry cover has fallen apart in the cold weather !
This definitely should not be the case it may be the signal levels, the idea of cable is that it doesn't suffer from the effects of bad weather like aerials & dishes, & provide a good image in SD & HD. Regards Micky
Thanks for getting back to me with this information.
Okay what I would like to do next is to arrange for one of our engineers to take a closer look so I'm just going to send you a private message with appointment times which you will find if you click on the purple envelope at the top right of the screen.