TV Highlights Tuesday
Eurovision Song Contest: Semi Finals
RTE Two, 8pm
Marty Whelan (right) commentates on the first qualifying semi final of this year's 'Eurovision Song Contest' in the B&W Hallerne in Copenhagan, with Iceland, Russia, Holland, Hungary, Ukraine and Portugal among the competitors.Embarrassing Bodies
Channel 4, 8pm
This week, Doctors Christian Jensen, Pixie McKenna (both right) and Dawn Harper find out why just four percent of people in the UK who can donate blood actually do. Plus, the medics find out some of the good things the harvested blood can do. The French Revolution: Tearing Up History
Dr Richard Clay (right) examines the symbolism behind the French Revolution mob riots of 1789. He finds that rioters rehearsed by decapitating statues before turning their attention to the heads of aristocrats.