Here's a bunch of simple tools I put together mostly for my own use really, but some others may find them helpful. These programs allow you to adjust/optimize the composite video output of a CGA card (or 100% register-compatible) for a (CRT) television set. You can use them to align the screen position horizontally, fix various issues related to 80-column text display, and make the adjustments "stick" while running programs and games -- even booters.

https://int10h.org/blog/2018/08/tvcgafix-util … -output-for-tv/