So i put the AVSHD709 into my ST50 and went to the basic settings OK so black clipping no problem only 17 and above flashing. APL clipping and again no problem 19 to 28 flash and just barely able to see 19. White clipping??? its all flashing no matter what so how can you set it??? can't do this next one flashing colour bars i assume as i don't have a blue filter but then again no idea what one is and where to get one. So onto Sharpness with sharpness at min nothing happens turn up to say two clicks and a couple of the patterns change but nothing like is explained in manual so don't understand this one. Anyway so i ran the A3 colour step seemed OK then the A4 colour clipping seemed OK. I then went into the 100% white and played around with the white balance settings until it looked really white then i clicked into true cinema and the picture was anything but white it looked almost copper in colour anyway i messed around with the white balance again until it looked white. Now when i go into play my hd material on sky it looks better than ever and a great deal better than the settings i did have but i have no idea what i am doing??? I like the look of a calibrated set if a dummy can get this result by just fiddling around. But is there anyone who can explain how to use AVSHD709 to just do a small bit of calibration in plain english or for dummies as don't know what to do i like the picture i have but would like to fine tune but do not know what steps to take and searching on the web just gets more confusing guides.