Following the announcement that Kate and William are expecting their first child, this programme takes a look at royal pregnancies, births and babies. Royal Babies provides an insight into what lies ahead for the new prince or princess, and reveals stories from those who were witness to previous births. There is also rare footage of the young Princess Elizabeth, and of Prince William as a toddler playing with baby Harry. The child born to the Duke and Duchess of Cambridge will be more historically significant than any born before. With the change to the 300-year-old succession laws, a first-born girl can become queen, regardless of any male siblings she may have.
BBC Knowledge at 9pm