Not Everyone Has To Be Modern (documentary)
From Tardis Wiki, the free Doctor Who reference
Not Everyone Has To Be Modern was a documentary detailing Series 10. It was part of a series of documentaries about series 10 of Doctor Who.
Main subject
Pearl discuss Bill Potts's private conversation with the Romans and how she summons up the courage to tell them she's lesbian and is surprised about how modern they actually are, turning a stereotype on its head.