unlike my book and film lists, I think it's very likely I will forget to add things to this list, as I listen to so many audio dramas. however, I'll log what I can...
Terry Pratchett: The BBC Radio Drama Collection (BBC)
includes Mort, Wyrd Sisters, Guards! Guards!, Eric, Small Gods, Night Watch, and Only You Can Save Mankind
Doctor Who: The New Adventures of Bernice Summerfield Volume 1 (Big Finish)
includes The Revolution by Nev Fountain, Good Night, Sweet Ladies by Uma McCormack, Random Ghosts by Guy Adams, and The Lights of Skaro by James Goss