What does OAR and OTA mean? If you have a 4:3 TV and watch a WS DVD, what happens? Also, if you have a 16:9 TV and watch a "regular" DVD, what happens? Is 16:9 the same as letterbox? The only channels I have really seen many items that are labeled letterbox are Sundance and IFC. What is a direct view TV? Thanks, as always, for any help!