costume drama

US /ˈkɑː.stuːm ˌdrɑː.mə/
UK /ˈkɑː.stuːm ˌdrɑː.mə/
"costume drama" picture
1.

a film or television drama in which the actors wear historical costumes

:
She loves watching costume dramas set in the Victorian era.
The new series is a lavish costume drama about the French Revolution.