At 18:59, on 13 May 1965, this television announcer alerted BBC viewers that the next programme [Top of the Pops] would start within one minute. (TV: The Chase)
In the distant future, Vicki Pallister, Ian Chesterton, Barbara Wright, and the First Doctor heard his announcement whilst aboard the TARDIS, via the Time-Space Visualiser they had taken from the Space Museum. (TV: The Chase)