BBC has a pic of last year's presenter, but for episode one (July 15th) state:- The Great British Sewing Bee returns as 12 new sewers tackle shape with tie-front blouses, transform circle skirts, and use pleats in a dramatic Made-to-Measure challenge.
For 'presenter' they list Sara Pascoe, so we won't be watching much, as we both can't stand the woman, an irritating voice, patronising manner and to complete the unholy trinity, she's one of the least funny alleged comedians on the planet, about as amusing as root canal work without anaesthetic. (not just my opinion, similar comments on many F'book forums).
NB - for Miranda and others, it's NOT just about sewing skills, to get the viewing figures up, they try to broaden its appeal, hence the 'recycle' challenge, and a few 'jokes' on the way.