Hi Dane,
A 1080p display is in reference to its capabilities. This thread is discussing how these sets are unable to RECEIVE a 1080p signal, even though they are capable of displaying it... meaning, these sets would have to receive a 720p or 1080i signal and then upconvert internal to the display to 1080p.
This thread is a little out of date, many of the 1080p units released in the last quarter are capable of receiving 1080p input, usually on the hdmi connection.
Hope that makes sense.
-James