"ethereal swirl", but in the seance scene they ran into the challenge of animating the Gelth's mouth. The Gelth turning red during the seance scene was a "last-minute" change to the visual effects. The Mill overshot their quota of CGI for the episode, and compensated with small swirls in shots that focused on other characters. Broadcast and reception "The Unquiet Dead" was first broadcast in the United Kingdom on BBC One on 9 April 2005. In the United States, the episode aired on 24 March 2006 on the Sci-Fi Channel. Overnight figures showed that the episode was watched by 8.3 million viewers in the UK, an audience share of 37%. When final ratings were calculated, figures rose to 8.86 million. The episode received an Audience Appreciation Index score of 80. "The Unquiet Dead" received some criticism from parents, who felt that it was "too scary" for their young children; the BBC dismissed the complaints, saying that it had never been intended for the youngest of children. Doctor Who novelist and Faction Paradox creator Lawrence Miles posted a scathing review of "The Unquiet Dead" on the Internet within an hour of its broadcast, focusing on a perceived political subtext suggesting that asylum seekers (the Gelth) are really all evil and out to exploit liberal generosity (the Doctor). He criticised the script for promoting xenophobia and "claiming that all foreigners were invaders", especially as the top stories in the news were about immigration into Britain. The review produced considerable backlash on the Internet, mainly over his comments about writer Mark Gatiss. Miles was personally contacted and ran into trouble with his publishers. Miles deleted the review and posted a revision, though the original is still available on another of his websites. Dek Hogan of Digital Spy stated he "really enjoyed" the episode and it was "beautifully dark". He later described it as "a chilling tale" and "a cracker". Charlie Brooker of The Guardian wrote that the episode "may be the single best piece of family-oriented entertainment BBC has broadcast in its entire history", complimenting that "it's clever, it's funny, it's exciting, it's moving, [...] it looks fantastic, and in places it's genuinely frightening". Brooker also notes a similarity to the style of Nigel Kneale. Now Playing magazine reviewer Arnold T Blumburg gave "The Unquiet Dead" a grade of A−, describing it as "spectacular", though he noted there were "a few hiccups, such