This means the network broadcasts Standard Definition content in its Original Aspect Ratio. In other words, the network does not apply any form of stretch, zoom, or crop to the Standard Definition content.
If the content was originally produced in 4:3, the content will appear pillarboxed. If the content was originally produced in 16:9 and subsequently letterboxed, the content will appear windowboxed.
This means that the network properly labels Standard Definition content in the guide. In other words, the network does not label stretched, zoomed, or cropped Standard Definition content as High Definition.
This means the network broadcasts High Definition content in its Original Aspect Ratio. In other words, the network does not apply any form of stretch, zoom, or crop to the High Definition content.
If the content was originally produced in 16:9, the content will completely fill the screen. If the content was originally producted in 1.85:1 or 2.35:1, the content will appear letterboxed.
This means the network properly labels High Definition content in the guide. In other words, the network does not fail to label High Definition content as HD.
David Carmichael has created an Online Petition to help persuade the networks to begin broadcasting Standard Definition content properly. Be sure to check it out!