Mine does not work quite as expected with certain OTA channels in the Dallas area. With SD programming on these channels (with S-video out) I get the side bars applied by my widescreen TV (expected), but then within my 4:3 picture the 811 puts black bars on the top, bottom, and both sides. So I end up with a very small picture. But if a station is multicasting, it seems like it doesn't do it on the second channel (ie. 5.1 has this problem but 5.2 does not). I think it must have something to do with the broadcast by the station though, rather than the 811 itself. All the Dish SD channels are formatted correctly.
With HD programming my TV puts bars on the sides, and within the 4:3 picture the 811 just puts black bars on the top and bottom. Is there any way to get the 811 to output a 16:9 picture over S-video? I've messed with the menu options but I can't get it to do this.