Only real issue I've experienced has been with the picture quality on red button for BT Sports (Champions League) and Sky Sports (Euro 2016), which is dreadful compared to equivalent on Sky platform.
On Sky, red button games were largely transmitted in SD but picture quality was always as it would be on a general SD channel. On Virgin, it's far worse. Tried to watch part of the Italy v Malta game the other night and it was like watching a dodgy internet stream. Cynic in me thinks it may be down to Sky and BT providing VM with sub-standard transmission quality but would be good to know.
Just wondered if anyone has had any contact with Virgin on this issue? Tried to get an answer via chat and the guy clearly didn't have a clue what I was on about!