the C5 has a slightly bigger/uglier bezel than the C3, definitely does NOT use an IPS panel (it has typical lcd viewing angles), drops the SD card slot, and replaces the digital optical audio out found on all Panny sets with a digital coaxial. To get a "real" Panny set, you need to step up to the X5.
ht Panasonic 60" ZT60, Monitor Audio: Silver RX6, RX Centre, Radius 90HD; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D
2ch Sony KDL-32W650A, Sony BDP-S1000ES, Marantz PM8004, JVC T-X3 tuner, Monitor Audio Silver RX1, REL T3, Apple TV, Peachtree Audio DAC•iT, Sennheiser HD598
lr Panasonic 50" ST60, Sony BDP-S5100, Apple TV
pc Energy CB-5, Audioengine D1, FiiO A1