HD200, SageMC, Edit Aspect Ratio

[kelcher789]

Running a headless system with latest SageTV, SageMC, and latest beta firmware for my HD200, which is hooked up via HDMI to an older CRT rear projection HDTV. Unfortunately my TV has quite a bit of overscan. This results in having hard coded subtitles cut off at the bottom and sides of the screen on some of my videos. While watching one of these videos (on my HD200 with SageMC) I can press the options button to bring up and select "Edit Aspect Ratio", which brings up another window to allow me to adjust "Zoom Width" and "Zoom Height" in percentage, as well as "Offset Left" and "Offset Top". I would like to zoom out using these adjustments to get more of the picture on screen, but changing them has no effect. Does anyone else see this? Is there any way to adjust the zoom width and zoom height of an aspect ratio, such as "Source", to allow more of the picture to be seen?

I have already tried bringing in the sides of the screen under SageTV's "Overscan Settings", but that seems to only affect the GUI, not the video being played.

Keith