Hi, I hope someone can help me on this problem. I have a sound issue when watching all channels on Mux2 (itv1,2,3, news,C4, E4) and MuxC (Sky News, Sky Sports News and E4+1) through my a/v receiver in any Surround Mode. This is only through Freeview and happens on both of my STBs - One old On Digital Nokia and a brand new Sony 800DU. The sound from the rear speakers distorts and what can be best described as garbled underwater/electric audio comes out. As I mentioned this is only in Surround Mode and switching back to normal Stereo though the front/centre speakers resolves the problem. Does anybody know of an issue with these muxes in the London area? Is there anybody I can contact with regards to the problem? Could it be an aerial issue? the main aerial cable is old Coax but this would cause a problem on all channels if it was degrading - correct? Thanks in advance for any help. Stu.