Big Finish's journey with Doctor Who began in 1999, when they released their first audio drama, "The Sirens of Malta." Since then, they have produced over 800 audio dramas, including series, serials, and one-offs, featuring every incarnation of The Doctor from the First to the Eighth, as well as several spin-off series. Their commitment to quality, creativity, and authenticity has earned them a loyal following and critical acclaim.