Studio 1B
From Tardis Wiki, the free Doctor Who reference
In Earth-33⅓, Studio 1B was located inside Beeb House. The Sixth Doctor and Peri Brown witnessed their special effects man producing the noise of a trotting horse using coconuts which was partly the reason why the Doctor had reconsidered his belief that entering the world of radio could lead to big things. (COMIC: Doctor Who? 178)
