I own a Toshiba and it is a 56 inch. It accepts all 480p 720 and 1080i
It upcoverts the 720 to 1080
I surmise capable means exactly what it says. It is capable of producing that signal.
Most of these sets operate off a cable box or sattelitte HD tuner.
In the tuner box you have to go into the set up to select 1080 0r 720 display,
What happens after that is up to the tv. It can natively display the 720 or 1080
Most Crt projection are capable of displaying 1080 and others can do both 720 and 1080
Check the website www.toshiba.com
and see how your tv will perform. No matter if it is 720 or 1080 the picture will be stunning.
There is an ongoing debate which format is better. That has yet to be resolved,and it may never be resolved