Sunday, 8.30pm, Seven The third series of this much loved historical drama debuts tonight. Seven has been holding it back a little. It has already aired in the US where this episode attracted a phenomenal eight million viewers, and in territories as far flung as Iceland and New Zealand, where it began in October. To say the program goes from strength to strength is an understatement. This season Shirley MacLaine, pictured left, joins the cast as Martha Levinson, the American mother of Cora, Countess of Grantham (Elizabeth McGovern). Martha’s presence causes an upheaval, especially for Violet Crawley, Dowager Countess of Grantham, played by Maggie Smith, right. Violet’s haughty antiAmerican views have been given free rein in the two previous seasons, so this brash, overconfident woman is an affront to sense and sensibility. Also this season, Matthew and Mary tie the knot at last.