I have a Cablevision supplied Scientific Atlanta 4200HD Explorer converter box connected to my Sony KV40XBR700's 1080i inputs. The SA4200 has a settings menu which allows you to select 480i output or 1080i output manually. I generally have it set up with standard 480i output because all but 2 channels are broadcast in 480i. The Sony recongizes the lower resolution and shows the input in the traditional 4:3 ration. However, when I tune to the 2 channels which do broadcast in 1080i (some sports events), it appears as if the box is recognizing the 1080i feed and automatically passing it to the Sony without manipulating the menu (16:9 aspect is preserved). When I manually select 1080i on the box, the only noticeable difference is the grey bars on the top of the Sony turn black. There's no mention of this "feature" on the SA web site. Is this too good to be true?