Happy to see that someone digging in the direction of better FPV image quality. I've interested in this topic by fortunate accident with Eachine c800 20$ camera. Its turned out that this camera has switchable video output mode CVBS/TVI/CVI/AHD-D (by holding pressed joystick during power-on, easy to switch it by accident). This wasn't mentioned anywhere in description and made me false thinking cameras are dead until I found very helpful comment. I've got two cameras back to life and also became very curious why we can't use all of its image resolution in FPV? So maybe this is another step towards AHD FPV and could help make life like setup.