Already wrote this out once and the internet went off and lost the post. Fun times.
We are regularly seeing the picture on our TV lose signal and go blocky. When it gets really bad it is actually unwatchable. An engineer has already been out once and thought he had made it better, but we are still getting the issue.
He showed me how to check the RS corrected and uncorrected in the diagnostics screen and while the issue was occurring the numbers were very high on the second of the two lists for it.
Getting a bit fed up of the constant issues we have been experiencing in the three weeks since we switched with the TV (and to a lesser extent the broadband) combined with the issues activating our account (which I still don't know if they are fixed since the promised emails from customer care never materialised).