Buffy: The Vampire Slayer - Change of Shoes
At the very end of the episode when Buffy is on the roof of the high school fighting the Master in her white prom dress you see a shot of her feet in white high heeled shoes. She then does a flip over the Master and does a high kick to his face. If you look at her feet when she does that kick she appears to have changed footwear mid air into a pair of black shoes!
episode Prophecy Girl series 1, good eyes, slow motion capabilities on your VCR
on 08-21-2001 and