A look at the biggest-selling singles of 1978, the best pop videos, and the artists who appeared in them. Chris Tarrant, Dana, Paul Gambaccini and other famous faces guide us through the biggest hits of the year. Gwen Dickey of Rose Royce recalls her time at the top of the charts. Dean Friedman tells the story behind his big hit, Lucky Stars, while members of 10cc, Boney M and Brotherhood of Man look back on their chart successes.