Are all 4:3 OTA broadcasts locked in the letterbox format with this use of a Sony SAT HD-100, and Sony 16:9 RPTV? I notice that there are many forum participants using the HD-100, and have seen nobody express this same concern. When selection the Video 3 Variable output, satellite broadcasts can be stretched/zoomed using the TV options, however OTA broadcasts seem to be locked into 4:3 format by default. Is there anyway to use the RPTV's zoom/stretch functions with OTA broadcasts? In fear of burn-in I like to avoid 4:3 images. I apologize for repeating the same question, however I am sure a short answer can help me out. I also apologize if my question is being driven by some simple ignorance on my part. I have read the worthless manual many times over, and have come to the conclusion that 4:3 OTA broadcasts are indeed locked in the 4:3 format. However, I would appreciate if someone could confirm. Thanks.