I went through the video, i think i got the gist of it though i got totally confused when the colors started appearing, it did not have an instruction on what to do there
Sorry about that. Those are a bit advanced (You need blue tinted glasses, unless your TV has a Blue mode.) and sometimes requires professional tools that hook up to your TV. So no need to worry about those right now.
For the most part, your TV should be okay color wise, even if it's not completely accurate.