Help indeed. I have had HDMI leads buried beneath the plaster in my office, kids play room and my bedroom. Play room blu ray and bedroom TiVo are fine. For some reason, my PS3 in my office looses sound, and sometimes picture for just a split second. It works fine with a spare HDMI, as well as on my lounge tv.
So
Are all 3 leads in my office wall defective? Or can something be interfering with them? I have an Ethernet cable and the ring main cables ran alongside the HDMI.
Any thoughts?

