The better the display the more flawed SD looks though, double edged sword.
I've owned a plasma from all three of the big three and a few dlp's and an sxrd and none of them can touch an HD-crt.(like the 34xbr910 I have in a bedroom now)
His old rptv was probably a 7" crt.
Well, the Sony 34XBR910 is better in three of its' four modes(all but vivid) after calibration with DRC in custom 3 than my Kuro Elite was in either User mode (calibrated for SD) or Pure mode(alibrated for HD)
The Elite was 50", which also shows any flaws/less original information more readily.
The colors are just as good and same with the blacks.....but the image noise, jagged lines, etc. make for a less pleasing image.