Can anyone advise me on the best picture settings for KDL-40V2000. Ive been told that the default settings are not that clever. TV conected to Sky HD box. Seeing pixel blocks on blue to black graduations? Very noticable in dark skys etc. It happens with both the original Sky HDMI cable and a £30.00 cable that i bought yestarday (woth a try). Is the Sky cable up to the job? or is it down to the TV. Also has anyone noticed a high pitch sound when the TV is set to Surround Sound. Only happens when using the remote and has only just started when had Sky HD installed. Hope someone can help!