Your question is reminiscent of the following:
"Someone has told me you can make money from trading on the Stock market, how do I do it?"
to which the deceptively simple answer is:
"Buy stocks at a low price and then sell them again at a higher price"
So here is a deceptively simple answer to your question:
Install ffdshow and avisynth onto your system and then select from the many available avisynth scripts those that you think might improve your video viewing.
Under the MC video options select Video Mode:advanced:custom: Custom Video Mode. In Custom Video Mode add ffdshow post processing having started with Red October HQ.
I suggest a LOT of use of Google first.........
