I am sure Virgin Media are already aware that this problem occurs with all soundbar makes and models. Virgin stating to contact the soundbar manufacturers is to deflect and delay from the real problem that Virgin TV 360 sound can not deliver Dolby functionality when connected to a quality soundbar.
Just wanted to add my name to the ever growing list! I have a Sonos beam connected over HDMI and lip sync is awful, I've tried various workarounds but no joy. If I go into the 360 settings and set the audio delay to 0ms it's pretty close to being in sync, but it doesn't stay like that for long.
Also, could someone remove the "solution" from the post please? It's really misleading, this issue is not fixed!
I upgraded to 360 yesterday before reading this thread and I immediately experienced lip sync problems . What a mistake. I am truly amazed this has been going on since last November and there is still no resolution. I'm fortunate my setup is very basic i.e. no sound bar, no 5.1 amp so I resolved the issue by disabling DOLBY processing and all seems to be fine now, but I understand everyones frustration. Come on Virgin Media this is damaging your reputation.
Seeing as this is a problem with the software upgrade to 360 (I joined in April so 360 and the sync issue is all I know) Virginmedia should allow customers to roll back the upgrade to the previous 'working' version so we can enjoy watching TV until the problem has been resolved. Although this would mean Virginmedia having to admit problems with 360 - come on Virginmedia just admit it and let us have a decent TV viewing experience until you’ve fixed it.
Thanks for your reply, assuming that you are using a Virgin 360 Box, Dolby enabled sound bar and ARC connection (where no resolution has been found or suggested by Virgin) you may find that the audio synchronisation problem varies by channel?