We've recently had a Virgin TV package installed but we're unable to get the soundbar working.

Prior to having the package we had a Humax recorder and the soundbar worked fine with it. But even then, if we plugged in our Firestick in the other HDMI port, the soundbar wouldn't work.

The Humax is still connected and the soundbar works but when we change over to Virgin TV it doesn't.

I've disconnected the Humax box, put the TV aerial into the back of the TV but the soundbar still won't work.

The Virgin engineer, who by the way has a degree in music and technology couldn't get the soundbar to work with the new package !
He said there might be formatting issues with the JVC soundbar, but couldn't find any settings on the TV to sort it out.

I'm stumped ! Any ideas ?