Sorry, my love for satellite TV died off with Dish Network. heaven forbid i'd attempt the oddball system that DirecTV uses (hint, it requires THREE dishes!!! WHY?)
Dish Network's receivers had no such option at all, it was normally formatted correctly from the start where all channels filled the screen from the get-go. it'd be neat on the
DTV converters though if they were able to zoom no matter what, set it a certain way and it automatically zooms as far as it'd go regardless of TV type or channel mode.