A look at the biggest-selling singles of 1985, the best pop videos, the artists who appeared in them, and the stories behind the songs. A-ha's Take On Me, and I Know Him So Well, by Elaine Paige and Barbara Dickson are two of the classic tracks under discussion. Contributors include Toyah Willcox, Paul Gambaccini, Cheryl Baker and Carol Decker. Jenny Powell narrates.