1x04 Down by the River [season finale]
ITV1's South Bank replacement lets Hugh Laurie explain his love for blues music, culminating in his recent performance in New Orleans. It's perhaps not as intellectual as South Bank, which is probably the point, but it's certainly as informative and entertaining. The series also has a surprisingly extensive website, by ITV standards.
[Watch it (again) on ITV Player.]
3x04 The Trouble with Love and Sex
Meanwhile, one of the BBC's documentary strands looks at the effect of Relate counsellors on relationships, through recordings of actual sessions visualised through animation. Interesting.
[Watch it (again) in HD on iPlayer.]
Yes, Prime Minister
1x05 A Real Partnership
This isn't a documentary. But it almost could be. And one about today's politics, too. Shocking, really, considering it was made over 25 years ago.