I'm in the market for the new PT-47WX49 (47" 16:9 HD ready set due in June). I will be moving from a Sony 32" direct view that I had service menu codes for and was able to tweak to a high degree using AVIA and website info on Sony's abbreviations and code values. Is there anything like that for Panasonic HD ready sets? I know they have a service menu, but is there a place one can go to educate oneself on the values and tweakability of this menu? And how to get there? I will already be ordering the Service Manual once I get the set. Thanks in advance!