Jeremy Clarkson will be featured on "Who Do You Think You Are" on channel 9, 10 pm Tuesday. If you haven't seen this great series it's well worth a look. The idea is that celebrities trace their family tree back and uncover skeletons in the closet and some interesting family connections. It's been shown on SBS and BBC Knowledge for years and Channel 9 recently started showing the US series which typically doesn't hold a candle to the British and Aussie versions. Once you get into it, the show can be really addictive. Celebrities that are otherwise forgettable and/or annoying can often turn out to have fascinating family history, for instance, Jerry Springers story was especially interesting. Clarkos family story should be worth a look.