01/04/2013 01:51 pm ET

Hugh Bonneville On 'Downton Abbey' And 'Homeland' Differences

Hugh Bonneville, who plays Lord Grantham in the hit period drama "Downton Abbey," says the upcoming third season (premiering Sunday on PBS) will be tougher than ever on His Lordship, as he’s forced to contend with such horrors as the dawn of twenties, a chauffeur turned son-in-law, and the possibility of moving out of his castle and into a mere mansion.

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