To anyone who's been to a filming:
do they film the Keep Dancing bit at the end of the Saturday night show directly after the contestants' entrance? Because if they film in the order it gets shown Amanda wore her pyjamas for the entrance then the dress for the dance and then pyjamas for 'Keep Dancing' and then the dress again for results.
Filming the Keep Dancing before the actual dancing also means everyone will look cheerful / no hair, make up, wardrobe issues at the end of Saturday's show.