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The Big Bang Theory is back – and so is Sheldon, who returns forty five days after his departure from Pasadena with a refreshed outlook and ready to tackle any challenge. Only kidding! He’s pretty much still the same. Season eight opened with two new episodes for audiences to revel in, ‘The Locomotion Interruption’ and ‘The Junior Professor Solution’, the former covering Sheldon’s return to the gang and the latter focusing on his appointment as a Junior Professor so he can still study dark matter (and get a pay rise).