Big Finish releases a free CD with two audio dramas, one of them a stand-alone Bernice Summerfield adventure and the other a prelude to the upcoming UNIT audio series featuring Nicholas Courtney as the Brigadier, attached to the cover of Doctor Who Magazine issue #351. Both audio stories are later made available on the Big Finish website. 
Big Finish releases a free CD with two audio dramas, one of them a prelude to the upcoming UNIT audio series and the other a stand-alone Bernice Summerfield adventure featuring the Cybermen, attached to the cover of Doctor Who Magazine issue #351. Both audio stories are later made available on the Big Finish website.
Big Finish Productions releases the first U.N.I.T. audio drama, a Doctor Who audio spinoff featuring Nicholas Courtney as Brigadier Lethbridge-Stewart leading a new cast of characters.
Big Finish Productions releases the second U.N.I.T. audio drama, a Doctor Who audio spinoff.
Big Finish Productions releases the third U.N.I.T. audio drama, a Doctor Who audio spinoff.
Big Finish Productions releases the fifth Gallifrey audio drama, a Doctor Who audio spinoff starring Lalla Ward and Louise Jameson. Mary Tamm guest stars in the opening story of the second “season” of the Gallifrey audio series.
Big Finish Productions releases the sixth Gallifrey audio drama, a Doctor Who audio spinoff starring Lalla Ward and Louise Jameson.
Big Finish Productions releases the fourth U.N.I.T. audio drama, a Doctor Who audio spinoff. Nicholas Courtney and David Tennant guest star in what is intended to be a “season finale”, though it will be several years before Big Finish revisits U.N.I.T. as its own audio spinoff.
Big Finish Productions releases the seventh Gallifrey audio drama, a Doctor Who audio spinoff starring Lalla Ward and Louise Jameson.
Big Finish Productions releases the eighth Gallifrey audio drama, a Doctor Who audio spinoff starring Lalla Ward and Louise Jameson.
Big Finish Productions releases the first Cyberman audio drama, a Doctor Who audio spinoff.
Big Finish Productions releases the second Cyberman audio drama, a Doctor Who audio spinoff.
Big Finish Productions releases the sixth Sarah Jane Smith audio drama, a Doctor Who audio spinoff starring Elisabeth Sladen, reprising her TV role. Stephen Greif (Blake’s 7) guest stars.
Big Finish Productions releases the third Cyberman audio drama, a Doctor Who audio spinoff.
Big Finish Productions releases the fourth Cyberman audio drama, a Doctor Who audio spinoff.
Big Finish Productions releases the seventh Sarah Jane Smith audio drama, a Doctor Who audio spinoff starring Elisabeth Sladen, reprising her TV role. Jacqueline Pearce and Stephen Greif (Blake’s 7) guest star.
Big Finish Productions releases the eighth Sarah Jane Smith audio drama, a Doctor Who audio spinoff starring Elisabeth Sladen, reprising her TV role. Stephen Greif (Blake’s 7) guest stars.
Big Finish Productions releases the ninth and final Sarah Jane Smith audio drama, a Doctor Who audio spinoff starring Elisabeth Sladen, reprising her TV role. Stephen Greif (Blake’s 7) guest stars.
Big Finish Productions releases the ninth Gallifrey audio drama, a Doctor Who audio spinoff starring Lalla Ward and Louise Jameson. This story closes Gallifrey’s second “season”.
Big Finish Productions releases the first I, Davros audio drama, a Doctor Who audio spinoff starring Terry Molloy, reprising his TV role as creator of the Daleks.
Big Finish Productions releases the second I, Davros audio drama, a Doctor Who audio spinoff starring Terry Molloy, reprising his TV role as creator of the Daleks.
Big Finish Productions releases the third I, Davros audio drama, a Doctor Who audio spinoff starring Terry Molloy, reprising his TV role as creator of the Daleks.
Big Finish Productions releases the fourth I, Davros audio drama, a Doctor Who audio spinoff starring Terry Molloy, reprising his TV role as creator of the Daleks.
Big Finish Productions releases the 15th Dalek Empire audio drama, a Doctor Who audio spinoff starring Noel Clarke and Maureen O’Brien (though neither is reprising their existing Doctor Who characters).
BBC Home Video and Big Finish Productions release The Davros Mission audio drama, a Doctor Who audio spinoff starring Terry Molloy, as an audio-only feature on the Doctor Who Complete Davros Collection DVD box set.
Big Finish Productions releases the eighth Doctor Who Unbound audio drama, a limited series of unconnected audios that are also unconnected to the larger continuity of the Doctor Who universe. David Warner (Tron, Time Bandits) stars as an alternate Doctor, with Nicholas Courtney returning as the Brigadier.
Big Finish Productions releases U.N.I.T.: Dominion, a standalone Doctor Who audio drama starring Sylvester McCoy and Tracey Childs. This story is nrelated to Big Finish’s earlier U.N.I.T. audio series.
Big Finish Productions releases a Doctor Who / Jago & Litefoot crossover audio drama starring Colin Baker, Christopher Benjamin, and Trevor Baxter.
Big Finish Productions releases a Doctor Who / Jago & Litefoot crossover audio drama starring Colin Baker, Christopher Benjamin, and Trevor Baxter.
Big Finish Productions releases the U.N.I.T.: Exctinction audio drama box set featuring the episode Vanguard. This is an audio spinoff series based on the modern series iteration of U.N.I.T., starring Jemma Redgrave and Ingrid Oliver.