Hi All, I just purchased a 75QNED85 and have a question about the ARC function. I have the tv hooked up to an older Denon AVR (2112ci). My cable box (FIOS) is connected to HDMI 1 on the TV. The Denon is connected from its HDMI Out (ARC) port to HDMI 3 on the TV (ARC/eARC). The tv has the ability to configure the Sound Out over HDMI to PCM, Auto or Pass-Through. If I select either Auto or Pass-Through the Denon sort of recognizes it as a Dolby Digital signal but just plays a sort of chirping/clicking sound. If I change the setting to PCM it works, but it only seems to be passing a 2.0 signal as the Denon reverts to a ProLogic surround mode. I didn't try connecting via the optical port because I already have something connected to the Denon's optical input. Anybody have experience with this? Should the PCM setting be able to output a full 5.1, 7.1 signal?