I have a new JVC smart tv and have no sound from Sky HD box.Netflix and Youtube are fine. Also the skybox works in another room. I tried using an Hdmi and it was fine except it just kept falling out. So I connected with co axial aerial. Good picture bit absolutely no sound. The menu is so confusing anyway. If I keep reinstalling it all it takes ages to connect to wifi so am reluctant to do all that again! Any simple solutions bearing in mind that I am finding it all very difficult.
You will need to use HDMI. Try using the lead the other way round, n other words plug the end that was plugged into the TV into the Sky box and vice versa; it just might not fall out that way round. Failing that a different HDMI lead will be the answer.
Me again. Yes it is all up and running perfectly with coaxial aerial. I now have a new hdmi cable but before I use it, will I have to retune it all again or will it just appear once I press hdmi source??