I am having audio issues with my Sony soundbar HT-CT260H hooked up via HDMI(ARC) to my LG 55LA7400 TV. I have 1 High speed HDMI cable going from the HDMI 1(ARC) port in the TV to the HDMI(ARC) port into the soundbar. I have my cable box plugged into the HDMI 2 port on the TV. I have my DVD player plugged into the HDMI 3 port on the TV. I have the soundbar set to HDMI(ARC). I turn on the TV and I get a picture, but the sound is from the TV Audio and not the soundbar. I then go into the settings for the TV and change the audio setting to HDMI/ARC and I still have picture, but no audio at all. I then go into the INPUT LIST on the TV and click on SIMPLINK and turn the SIMPLINK function to 'On'. I get audio from the soundbar, but only for 5 seconds and then it reverts back to Audio from the TV. Sometimes it will switch back and forth from the soundbar back to the TV a few times but will never stay with audio from the soundbar. Any ideas?