I don't think that the 65" LW6500 uses an IPS panel. The viewing angles on our display model are horrible. I have posted here many times about how bad it looks - visible banding, flashlighting, and 65" is just too big for passive 3D IMO. I would avoid it. The Sharp 70LE735 is probably your best bet. There is a a new 70LE745 that is showing up at retail which is edge lit instead of backlit and lacks the quattron panel.
ht Panasonic 60" ZT60, Monitor Audio: Silver RX6, RX Centre, RX1; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D, Panamax M-5100PM
2ch Sony 32" W650A, Sonus faber Toy Monitor, REL T3, Marantz PM8004, Sony BDP-S1000ES, JVC T-X3 tuner, Apple TV, Peachtree Audio DAC•iT, Panamax MR4300
pc Monitor Audio Radius 90HD, Audioengine D1, FiiO A1
+ Sony 65" XBRX850B, Sony BDP-S5100