I have a Sony Wega 36 inch XBR400 and have a standard RCA satellite receiver for receiving DirecTv. I'm thinking about purchasing an HD converter but have a couple of questions/concerns. First, are there any STBs that convert an HD signal from 16:9 to 4:3 format? While there may be some broadcasts that I would like to view in letterbox, there are others (TV shows primarily) that I would rather have fill the entire screen. If you can in fact convert from a 16:9 to a 4:3 HD signal, is there any loss in resolution? And finally, I have heard some complaints about Sony tvs automatically letter boxing HD signals, even when the signals are broadcast in a 4:3 format, resulting in black lines on all four sides of the picture. If anyone has any thoughts on these issues, or recommendations of STBs that may suit my needs, I'd greatly appreciate hearing from you. Thanks for your time.