As a graphic design student, I love learning how famous logos came to be. One I grew up watrching evolve is the PBS logo. I thought it was was cool that the P looked like a person's head. The Independent Lens site has three videos on it. Two of them show the different versions of the logo over the years, and the other is Herb Lubalin's explanation of how the PBS logo came to be. Hilarious narration, by the way, and I like how the graphics follow the narration. Here Lubalin's video, and enjoy!