A gossipy documentary in which friends, journalists and palace insiders tell the story of how the current queen pulled the strings of her own PR to take her from “royal mistress who destroyed the fairytale marriage” to an accepted royal. There are also juicy excerpts from Prince Harry’s tell-all memoir, Spare, and clips of very revealing interviews. This week: jungles.

Orangutans and rhinos provide considerable cuteness, but it’s an episode ruled by cats. Bengal tigers in the monsoon forests beneath the Himalayas and, in the less well-known forests of Iraqi Kurdistan, Persian leopards. The process of filming them is quite literally a minefield.

Alan Cumming’s enviable working holiday continues as he chugs through Scotland on the luxurious Royal Scotsman train. This week, he takes a turn in the driver’s seat then succumbs to the inevitable and enjoys – possibly slightly too heartily – a tasting lesson from the onboard whisky expert. Nice work if you can get it.

Fear is thick in the air as northern rebels who want to force England back to Rome take York – and now want the head of the man they blame for this religious turmoil, Thomas Cromwell (Mark Rylance). To add to King Henry’s (Damian Lewis) distress, Jane Seymour (Kate Phillips) still isn’t pregnant. For never was a story of more “whoa!”: Keanu Reeves is the delightful driving force behind this F1 underdog tale, grilling the key players involved in Brawn’s remarkable 2009 debut season.

As episode.