Twins Documentary

[BPH]

Does anyone remember a TV documentary shown several years ago about a pair of identical twin sisters who had been rejected by their parents in Yorkshire, and were being looked after by a kindly businessman in London. Without wanting to be unkind, they were extremely odd - the style of their hair and clothes was very old-fashioned, they moved synchronously, did everything together, brushed each other's hair, slept in the same bed, etc.. I'd love to see the documentary again. If anyone remembers anything about it, or better still has a video of it, or knows what became of these girls, I'd be interested to hear from you!