Earthshock - S19-E6
Visible crew/equipment: As Lieutenant Scott is moving up the scaffold staircase, you can see someone at the top of the screen reading a script. (01:04:20)
Visible crew/equipment: In episode 1, when Monarch tries to open the TARDIS, you can see the head of a crewmember hiding behind a crate in the foreground.
Earthshock - S19-E6
Visible crew/equipment: Just after the Doctor has explained the anti-matter to Adric, the shadow of the boom mike is visible in his blonde hair.
Answer: TARDISes are generally available for properly authorised use on Gallifrey; they're not usually assigned to a particular Timelord on a long-term basis. The Doctor stole his when he left his homeworld.
Tailkinker ★