The Day the Universe Changed: A Personal View by James Burke is a British documentary television series written and presented by science historian James Burke, originally broadcast on BBC1 from 19 March until 21 May 1985 by the BBC. The series' primary focus is on the effect of advances in science and technology on western society in its philosophical aspects. In the United States, the ten-week hour-long series was broadcast from 13 October to 15 December 1986, on PBS and was rebroadcast on The Learning Channel in 1993.