
On another forum I picked up this relating to no Sound on the latest Sony Bravia's with Freeview and producing no sound. It seems that the sound is muted when there are too many signal errors. Perfect Picture but no sound. The cure in two cases " I've experienced similar problems with RG59 coax that is stapled into place. It seems the positioning of impedance bumps caused by very tight staples form sharp filters that on an analogue signal are not to detrimental, but on a digital signal aren't workable." The cure was to replace cable with quality RG6.