This is going to be an odd one 
I’ve recently been playing around with MAME and setting up custom bezels with scanlines for old games. At some point, I had a strong urge to be able to watch my old 4:3 aspect TV Shows through one of these bezels. Darkened, rounded edges and tiny little lines running though old videos – oh, how sweet it would be! I actually think it would “improve” the “video quality” of older, standard-definition video.
I could not google-up a way to do this but if anyone knows of a way, please let me know. Anyways, thanks for “listening” to this crazy idea!