But then last night, during the newest episode of Series 7, "The Power of Three," the BBC gave me a little gift. Without spoiling too much, there's a (very brief) scene in which the Doctor takes Amy and Rory to the Savoy Hotel in 1890 for their wedding anniversary. And they step out of the TARDIS in period dress.
(All images from the Official Doctor Who Tumblr)
Amy's gown is a textbook example of evening wear in the late 1880's-early 1890's, with a pointed waistline, thin, strap-like sleeves, a low neckline, and a narrow skirt with slight bustling in the back. Even her hairstyle is accurate, with frizzled bangs and a high, curly bun.
My reaction was something like this.