LG Blu Ray to HDMI 1 on 867
TWC cable box to HDMI 2 on RX-V867
Output to LG TV on HDMI
ARC enabled. . works on TV sound going to receiver
Nothing on any other inputs on receiver. However, recently receiver continues to switch to AV4 AFTER it has already appeared to negotiate with HDMI 1 or 2. It will be working, and then switch over to AV4. It seems somehow tied to TV audio input, because if I switch that to AV1, that that is what happens to the receiver. Very annoying when you turn on and everything is good, and then screen goes blank because it switched to AV1 or AV4 for no apparent reason. However, it only does it once or twice after it comes on, and never later in middle of show thank God.