Jvc Tvs A Beautiful Tv Are All HD TVs The Same Quality Image?

Are all HD TVs the same quality image? - jvc tvs a beautiful tv

I have a JVC 36in flat screen, the 1080i. I have a PS3, which offer a high quality Monster HDMI cable. Picture is excellent, but I've seen other flat panel monitors in the store that my shot photos of the hotel. What is the difference?