In my experience the only time "colorism" plays a big role is when it comes to inter-racial dating. Lighter skin AA females, ie "yellow bones" having more success than dark skin AA females ie "redbones" (depends on your definition). Conversely AA males around my skin tone have more success in interracial coupling than light skin AA males.
This Tyra Banks woman and her show really get on my nerves. She obviously has a racial complex herself and is broadcasting all sorts of racially insecure people around the world with the excuse of 'helping them'. This is one of the rare kinds of entertainment I would call sick, it's disturbing how prepared people are to take advantage of others this way. If she really wanted to help people she would stop patronising a whole race on national television. I find it interesting to watch because I am intrigued but I can also see how it is sickly flattering to many people to watch others try to be the way they are without any effort or achievement in life. It's surreal.