Jane Austen saw marriage as a place where love could be sustained, but Doris Lessing saw marriage as a place where love died. Lady C, he thinks, is the first novel to bring love and sex together. All in all, a fascinating resume of lovers in literature. If you missed it, catch it on iplayer.
The only caveat I have is that I found the way Faulks stalks the countryside, acting as voyeur to these lovers, a little odd. I could have enjoyed the film clips better, I think, without watching Faulks watch them.