i've learnt quite a bit about Plasma and LCD tvs over the last few weeks based on my research and quest for flat screen but there's still room for improvement. I'm not a techy freak so am still clueless on what film-mode-de-interlacing is?? Hope someone can explain it for us laymens.
T, to answer your q's
1) SD: Obviously, every program on every channel is different (source: Sky+ box). IMO, quality of best picture i've seen is very good but not perfect (as i'm quite particular and then again i'm prob expecting hd quality). I can't sit any further back only further to the side and i do find that the viewing experience does improve. I think the picture quality is definitely better compared to most tvs at the shops when viewing SD. But what do you epect for £1,000 these days? hehe
2) HD: Unfortunately, i don't have any HD or upscaling players so can't comment on quality there. I think (and hope) it will churn out beautiful pictures on HD Dvd or bluerays.
3) In terms of Price, Quality, Look, Picture, Reputation & Reviews i would rate it at the top of my list based on my research. I was originally considering LCDs preferably the Sony W3000 but i think although LCDs have improved dramatically over past few years, the motion blur is still quite noticeable on LCDs (eg Philips 9632 with 100Hz) when not playing from a HD source. For me, the only thing i'm not happy about the PZ70 is the fact that it's very power hungry consuming 495W (whatever that means) more than double that of most LCDs at 180W-240W. Apparently, the 42PX70 is £200-300 cheaper with raving reviews & awards does the job almost as well although it's not full HD and will cope with anything you throw at it. (I personally wanted somthing which was full HD as not to be lagging in the new future).
4) Btw, i called up Panasonic UK today and they've confirmed that there are no differences between the 42PZ70B & 42PZ70BA models apart from the timing, batches and assembling factories... (well something like that...phew!)
Good luck with your search and let us know your progress, any findings or when which telly you've finally taken home.
cheers