@JDPoZ (I'm not sure why your reply does not appear in my view, but only if I look at your profile... Guess Kbin does not work correct at the moment?)
Me too! But where I live we did not use RF connection for NES, but had composite through RCA connection. I have different setups for the kind of system I am emulating. For NES and that time period my Shader choice is "composite" cable variant, SNES era "svideo" and "rgb" (or for you known as "component") connection. There are many more configurations for other systems and handhelds as well. Handhelds in example aren't CRTs, but LCD displays.