57's reply is correct if a HD signal (eg. OTA 720P or 1080i) is being fed into a Sharp Aquos HDTV (at least those with functions similiar to my 37" 2006 model) & it will be in Stretch mode with no option to change it.
The various Stretch modes are available if you are watching analog Cable TV.
The various Stretch modes are available if you are watching analog Cable TV.
