I added the optical cable and I'm done. I see some folk demanding that ARC work. They are still making that demand!
I had similar issue, non of LG support guys could help except the senior tech. I resolved it myself.
Please turn on ARC on your TV and then turn on SIMPLINK on your TV, it will allow ARC to work through HDMI and bring sound from your LG home theater system. TV and home theater takes 2 - 3 minutes to setup and realise that ARC is on through SIMPLINK. please be patience while they both detect each other. your LED display on home theater system will say ARC and not home or anything else. that means it on now.
Good thing is that both units support the HDMI ARC function, but the 47LV5400 only supports ARC through HDMI 1 and you would have to connect it to the HDMI OUT of the LHB976 for the ARC to work.
One other thing you may want to consider that comes to mind after reading over your description of you using Netflix and Amazon VOD apps, try using the High Speed HDMI Cable with Ethernet!
Let me know how things work out, good luck! You can also contact LG's Customer Interactive Center at (800) 243-0000 for assistance should you need it...IFV
This seems to be a European model.
There is no way I can find to turn ARC on even though the label giving the HDMIs etc is labelled HDMI1(ARC)
Is this label common to all better lg models? I think that the label is erroneous for this model.
Whilst 3 sites that sold this model say that it has ARC compatibility, one says no ARC compatibility.
Your advice pse.
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