The Elite models had more calibration friendly settings. The same year's models did use the same panels, and could produce the same black levels. There was a run of monitor-only (no TV tuner or speakers) display made after the last TVs which actually had even better panels in them.

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris