I have been helping a friend install a PremierXL to an older TV. The TV does not have HMDI - it is not HD and only has a few inputs. When we did the initial setup we went with Composite (Red/White/Yellow) and ran Get Started. The setup went about as usual, and it does work. Now we want to change to Component (Red/Green/Blue + Red/White) but I could not get the setup to "see" the new connection. Is this because the TV is not HD, or something else? The TV does have one Component input (it is a 1980s vintage JVC) Do we have to do a full system scrape and start over, or is there some deep layer menu in the Settings (as I recall older Tivos had.) If we try this, will it not work on this older TV?