Longest running science fiction audio play series
Who
Doctor Who - The Monthly Adventures (Big Finish Productions Limited UK)
What
275 total number
Where
United Kingdom (Maidenhead, United Kingdom)
When

The longest running science fiction audio play series consists of 275 instalments, and was achieved by Big Finish Productions Limited UK (UK) with Doctor Who - The Monthly Adventures, as verified on 20 April 2021.


The series began in July 1999 with The sirens of time.