[!@#$%!]

eta left is desaturated right is black and chrome

 

but was reading about the process of turning color film into bw print and its more complicated--they do manipulate color also before desaturating, the same way that a color filter would change a bw (film exposure by altering the part of the spectrum that provides luminance.)

so a lot more science into that. not sure what the mist dude did. BUT considering how most people watch tv, might not matter much for a home dvd.