Hi all. I've recently received my new Philips 47PFL9664 tv, and whilst I think the picture is extremely good, I can't help but feel the black level is no better than my 4 year old 37" JVC

. I've used the calibration facility on a blu ray and played around a lot with the various settings, but that doesn't make much difference. Everything else about the picture is great, apart from the "grey" it thinks is black.
I'd really appreciate any help because I'm sure a TV like this should produce much better blacks, or maybe I'm expecting too much? A good example is when there is a predominately black scene and the dynamic backlight/contrast option is on, the screen becomes what I consider almost true black (i.e as if the tv is off) - however, as soon as something brighter comes on it reverts back to grey. I'm sure there is a way to reduce this gap?
If anyone thinks the blacks should be good on this tv via correct calibration and can travel to Reading please let me know.
Thanks in advance,
David