Biography that airs on A&E network has been basically it's main show since it's inception in 1987 and their best and most looked forward to show every week. So much so that A&E has a spin off channel the Biography channel to air all of their old episodes of this show, that's how highly in demand the show is to the viewers.
Biography of any show on TV is the best show at chronicling the life of celebrities whether they be political, acting, sports, or other field of work. You get the best view of what made them who they are today short of reading an autobiography book about them.
They tend to interview people close to them or their peers to give their perspective on the subject of that episode.
