This week's episode of James May's Toy Stories, featuring his effort to make an Action Man doll break the sound barrier, was particularly entertaining. It seems to be up at Dailymotion, and is presumably on the SBS site for viewing too for a couple of weeks yet, too.
David Attenborough's quick run through animal evolution which finished last night on ABC was also good. Many parts of China that he was in looked quite beautiful. Perhaps this was a repeat, but I hadn't seen it before.