Peter and Pearl Go Period (documentary)
From Tardis Wiki, the free Doctor Who reference
Peter and Pearl Go Period was a documentary detailing Series 10. It was part of a series of documentaries about series 10 of Doctor Who.
Main subject
Peter and Pearl talk about the costumes for third episode Thin Ice, and how the Doctor was given a change of costume, a rare occurrence, and Bill Potts in a feather that dangled in front of her on a rainy day. At the end they talked about wearing diving suits, which were sound-proof and really heavy.