legacy of time
The Legacy of Time was a special anthology released on 17 July 2019 to celebrate twenty years of Big Finish Productions making Doctor Who stories on audio. Marketed as the biggest audio crossover event ever, it featured nine incarnations of the Doctor, as well as Bernice Summerfield, River Song, Romana II and Leela, both the 1970s and 2010s UNIT teams, and Counter-Measures. On 22 August 2019, the limited edition of the anthology became out-of-print, but the digital version of the limited edition remained available for purchase. On 4 September 2019, a standard edition was made available for purchase on CD that was without the two hours of behind-the-scenes content.