The Doctor Who theme was composed by Ron Grainer and realised electronically by Delia Derbyshire at the BBC Radiophonic Workshop for the show's debut in 1963. Created with tape loops and oscillators before synthesizers were common, it became one of television's most recognisable themes. Revived with each era of the long-running BBC series, it has been remixed countless times and adopted by fans online for edits, parodies and convention videos, keeping its eerie, time-travelling identity alive for new generations.