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This week we do yet another A-Z of Brains, and John tells us all about grey matter, the bulk of your brain! Plenty of facts in this one. Then Barrett gets Judge Jeremy on the phone for Dr Mango to help out. The judge is having a tough time with a murder trial, and the phone call might just tip John over the edge. Then to round out the episode, the lads do another Analyse This! Covering baddies from the movies, and how they should've been advised differently, so they didn't turn out so evil!