Thanks to Ballot Access News for the story.

C-SPAN Will Present “The Contenders”, 14 Weekly Shows Featuring a Presidential Candidate Who Lost But Changed Policy
Ballot Access News / September 3rd, 2011

Starting September 9, C-SPAN will present a new series, “The Contenders”. Each of the fourteen shows will present the story of a presidential candidate who ran and lost, but who changed U.S.