I am about to purchase a panasonic 42pv500 as an upgrade to a Hitachi 42pd5200. A few questions for for panasonic owners. 1] Have you ever noticed false contouring or colour banding while watching sd dvds? 2]have you ever noticed a green dotty appearance on blacks and dark areas or greys of the picture? 3] Please describe any other artifacts/picture noise other than the ones listed above if any. How close is the performance to a crt television? I would appreciate some help as I am close to deciding on an upgrade.