This is me starting from the ground up and doing some tests.

I tried taking some of the yellow out of Series 5, as well as upping the brightness and increasing the "Chroma U" contrast so the reds don't look (as) orange. The source video is the PAL Series 5 DVD. I'm still not sure if the differences between computer and TV coloring are very different in terms of LCD displays, so I could use an answer on that to avoid crushing/bleeding the detail with contrast edits.

I'm trying to go easier on the noise reduction this time. I got a little too excited on my first go, but it led to some unsightly artifacts. I am experimenting with applying the "Soften" filter at 1080p and scaling it back down to 720p, hoping to take away only the harshest of the grain, but I'm still waiting on the export to see it in action.

EDIT: Another sample, this time from Series 2. Very noisy, constantly changing color (usually between pink and yellow).