Someone who's recently taken roleplaying up was interviewed briefly and, positively, she was female. The other interviewees were, unsurprisingly, predominantly male. However, Louise Yeoman was involved in researching it and Cheryl Morgan was also interviewed.
It presented reasonably, if not compellingly, why roleplaying appeals to its players, and it also covered some of the history. The only significant flaw in the programme is one that I wouldn't have picked up myself, as I'm not involved, but reaction mailed around after the programme aired suggests that a more positive view of roleplaying's current state would have resulted from looking at the phenomenon of roleplaying online.