Comedian Alan Davies, who only managed to get a grade C in his maths O-Level, sets out to learn more about the subject with the help of Professor Marcus du Sautoy, the author of countless mathematical papers. Together they explore such ideas as the fourth dimension and concept of infinity, and have their brains scanned in a bid to find out whether some people literally have a better head for figures than others. Alternatively, a pack of brainless/beautiful types get themselves in an awful state in the House of Wax (9.05pm. TG4). It's utterly rubbish but definitely one for people who wish to see Paris Hilton meet her maker in a horrific manner. Elisha Cuthbert, Jared Padalecki and Chad Michael Murray.