Thanks, You_Too. I remember reading about the experiments with ColorLike and the results being hit-and-miss. Disappointing, but as you say, there has to be someone out there with the skills to modify the script to compare frames in a video sequence and match individual RGB channels.

Did you test ColorLike with a raw Blu capture? If so, the Blu-ray clipping would play havoc with an automated process and maybe more so with one that operates on combined RGB. Did you notice whether scenes with minimal clipping produced better results? The Blu-ray colour clipping can be easily fixed to test if this is the case.

Another option would be to create an image sequence from the Blu-ray capture and colour match (a reference set) in Photoshop. Perhaps the colour matching algorithm used by Photoshop would offer up more consistent results.