I didn't see that particular piece but I did see a bass related film in the US which was intended to show how a lure performs under water and it struck me that the colour balance had changed (becoming subdued). I do have another vid here which is meant to show the same with big flies tied using material from a Florida company that I deal with, called Success Flies and whilst it does show some quite amazing underwater movement, it also shows colour changes too, this time becoming more vivid as the synthetic material marries together and 'flashes'. Brilliant stuff. I'm still a big believer in natural colours, silver scale patterns, bluey green, black, definite fish shapes, rainbow patterns on the trout reservoirs etc and I really believe that at least some of the time it makes a difference between win and lose. But in some of the badly stained stillwaters that I've fished this year, the colour of cow dung, unless you bounce the lure or fly right on Mrs Pike's nose then you are better off with lumi, fluoro, firetiger, see in the dark kinds of colours. In that case you might want to know how I attribute the success of orange and fluoro red mag grubs in clear water this year. I don't have a definitive answer, perhaps Peter or Charlie have, however I've always found any shade of red from pink to maroon to be provocative to fish in the same way that it can be seen to stir up mammals. I think it's easier to find colours that don't work, when I was using red I could usually also catch on pearl, shades of green, two tone black and anything EXCEPT YELLOW. Charlie will relate the same experience on the Yare. That's the only colour deliberately in short supply in my box. I will however girate first to anything that looks like a real fish, the silver, black backed ABU Terminator has remained my favourite hardbait all year.