I have searched the forum for this information, but still have some unanswered questions. I have read about a service menu in order to check on the DCDI chip - I saw somewhere to enter mute, 1, 2, 8 and power, but this just turns the tv off - how do I check on which chip I have? Also, I have read about firmware 2.xx and 3.xx - what is this and what is it's significance? Also, have seen tweaks - what are these and how are the performed? Please do not shoot me down ala snl skit "mooove" Please talk in layman terms and i promise I will learn. Also, anything else I need to think about?