Five minutes later, the programme reported on a plan to do away with the sexist terms "Sir" and "Miss" in schools, citing a professor from Sheffield Hallam as suggesting that pupils should use "Christian names" instead. Sigh. I very much doubt that the professor actually used that phrase: this report refers only to first names - so probably this was the BBC showing its "Christian ethos".
Incidentally, last week I was helping out with a school play for a project I'm involved in, and was universally addressed as "Miss" by the 8-year-old pupils there. It felt... weird. (Fwiw, the project is about the experiences of the Somali community in Bristol, and a lot of the children were Muslim.)