"And now, 14 minutes of continuous music!"

One radio contest that isn't likely to make a comeback: counting the number of minutes in a music sweep.  In the early '80s, radio stations here used to make a bigger deal about the amount of continuous music they played.  At least two stations held contests in which DJs asked listeners to call in and state the number of minutes a music sweep lasted.  On at least one of those stations, the DJ would state the time when starting the sweep and the time as it ended.  By today's standards, some of the music sweeps contained relatively modest amounts of music.  Stations would promote sets of continuous music lasting for 21-23 minutes fairly often.  Given that you'd find that amount of music on one side of an LP at the time, such amounts must have seemed generous at the time.