If a programme is filmed in HD - it will be widescreen HD on a HD channel.
If a programme is filmed in Standard definition, but in widescreen - it will be shown in upscaled widescreen on a HD channel.
If a programme is filmed in SD 4:3 - it will be shown in upscaled 4:3 on a HD channel.
HDMI (WIDE) setting will only stretch SD broadcasts on SD channels - HD channels see the black borders as part of the pic and you can't stretch the image.
You do not have a fault and neither do your friends.
HTH
