Hopefully It's just a glitch, and if your service status say's it's ok then it hasn't been logged as being an issue. If the problem persists it will need a call to Virgin to at least run some diagnostics.
The problem is indeed persisting. I just called the service status line and, like the website, it's reporting no issues locally.
Everything was fine up to this evening. If the issue persists tomorrow then I think I'll need to call. It's really intermittent - maybe not quite as frequent as earlier. TV is watchable, but the pixelation burst / pop up message is definitely irritating. Not sure how this will affect my next recordings on Monday.
A Diagnostics check in Settings shows "Signal Quality" as "Good". How good is "Good"? Is there a "Very Good" or "Excellent"?
I'd do a factory reset but I assume I would lose my recordings? There are several shows I'd definitely want to get through first. This box is barely three months old (as is my subscription) so these sudden issues are a little perplexing.
Really appreciate your help so far. I'm hoping it'll all be suddenly fine again tomorrow!