When I clicked over to BBC Iplayer, I found a charming little episode of Fry’s English Delight that talks about color and the words used to describe and label it, and how people subjectively.  While Fry interviews Hockney on the nature of color and its relationship with words, it represents only a section of a whole.  Fry introduces other aspects such as how children interpret color and different cultures look at color.  Hockney comes off as this charmingly boisterous and irreverent man who questions everything Fry says and Fry sounds as if he has a good time talking to him.