Alistair Lock is a multifaceted talent in the realm of sound design, celebrated for his contributions to iconic science fiction franchises, particularly within the Doctor Who and Blake's 7 universes. His work on the 1991 film The Corridor Sketch showcases his ability to create immersive audio landscapes that enhance storytelling, making it a sought-after title for collectors who appreciate the artistry of sound in film. Lock's involvement with the Big Finish series has cemented his reputation among fans and collectors, particularly with his reimagined works like Blake’s 7: A Rebellion Reborn. His collaborations on independent Doctor Who stories, including the cult classic The Airzone Solution, have also garnered attention, appealing to enthusiasts who treasure rare and unique home video releases. Collectors value Lock's work not only for its quality but also for its role in preserving and expanding beloved franchises, making his contributions essential in the world of physical media.