My god I've heard it all now!!!! Thanks for the enlightenment Worrier, if you pardon the pun.
I have never seen this on air before, nor ever heard about it, it did make me chuckle. I didn't watch the whole video clip to the end as I gave up when I heard the presenter stating "how great to finally have a solution!!!" does she seriously think that people contemplate that area whenever they visit the hairdressers to have their roots redone etc. Also if this is the case hasn't she been black, blonde and even red on air so she must have boxfuls on Betty in her bathroom cabinet so as to constantly match. Don't think so somehow!!!
Really funny item, personally my jelly belly gets in my way for me to even see if my grey roots are matching down there ... haven't seen it for years without a mirror, ha ha ha ha ha ha.