I haven't read through all the thread so this may have been mentioned before, but I used to wonder why they changed 'Rawsie's' character from being very bright to being a complete airhead, I now think it was probably because the scriptwriters and producers realised that Helen was so dim in real life she was not even able to pretend to be clever for her character's sake. It will always be a mystery to me why some 'zelebs' positively revel in their 'thickness'.
That's a really, really good point.
Wasn't she supposed to be some kind of genius who had to be sent to a private school to exploit her brilliance? Well remembered, sir/madam.