Not just for geeky (ex-)maths teachers like me...http://www.bbc.co.uk/iplayer/episode/b06csx20/secret-knowledge-the-art-of-the-impossible-mc-escher-and-me
The excellent casting helps - Nicola Walker off of Spooks
The first episode of Cradle To Grave was great - especially the funeral scene, which had me guffawing loudly - but I found the second ep a bit meh. I suspect there's a danger of it becoming very formulaic very quickly. Will probably keep watching though.
... worth watching just to see how Steve Howe has actually turned into Gollum.
Well that's the more blunt way of putting it but as usual he's dead right.
[ Of course, you need to like Ben Whishaw, and not be averse to male arses. ]
Lance being married to Andy's wife was a bit disconcerting for a while.