Cool project. Anything in particular that you use it for? There are some great films or TV series that were never released in digital form and some more where the digital releases were butchered in some way (e.g. cropped) compared to the original analog broadcast / VHS / Laserdisc releases.
I made this to teach myself about digital signal processing and scratch an itch I had for a long time, starting back when these technologies were still current.