Guys, I'm interested in getting a TV soon, and currently looking at Sony. But I am newbie in terms of TV selection. I saw there are many series, X7500H, X8000H etc. and I have no idea which to get. Many online seller is selling X7500H, is it a good pick? What is the major difference between 8000 and 7500?

Also, what does the H and J means? Production year or?

Sorry if I annoyed you guys with such basic questions