 British Sky One only aired the first part of "Avalon" with the short opening sequence.The highest rated Season 9 episode was the season premier two-parter "Avalon" with a household rating of 2.1 each, and held steady between 1.8 and 2.0 until the midseason finale "The Fourth Horseman", which finished with 1.8.The second part of the season oscillated between 1.6 and 1.9 and finished with a household rating of 1.9.