. >> coming up on c-span2, university professor kerri greenidge recounts the life of william munro trotter a civil rights activist. he used the boston guardian to promote racial equality area that followed by journalist lawrence weschler on the late neurologist and officer oliver sacks and eugenia chang, author of beyond infinity explores the limits of logic . >> tonight on the communicators, mark randolph, cofounder of netflix and author of the book that will never work shares his experiences starting the online streaming service . >> april 14, 1998 i our cto hit a few keys and we were live and it didn't take long and we got that first thing. how we cheered and again opening bottles of champagne and then two or three minutes later, ding ding, three more orders and we were so excited and then we got two more orders and in all the excitement we kind of lost track of things until someone noticed that it's been a while since the bell has rung . and we were unplugged, is there a problem? it turned out in the first 15 minutes of being online we had crashed all of our servers. >> mark randolph t