Series 7 and 8 were commissioned by the BBC in September 2009, ensuring that the show would run until 2011. The seventh series began airing on 10 September 2010 and completed its run on 12 November. The eighth series opened on 4 July 2011 with 9.2 million viewers, the show's highest rating for three years, and the first since the fifth series to break the 9 million barrier. The third episode of series 8, "Lost in Translation", was the show's highest rated episode to date with 9.7 million viewers, becoming the most-watched television programme of the week in the UK. Episode 7, "The Gentleman Vanishes," surpassed this figure with 9.87 million viewers, and was again the top programme of the week.