2013, it was ranked fourth in the Channel 5 list show 50 Greatest Kids' TV Shows. Acknowledging the series' "enduring appeal for both young and old", Robert Sellers remarks that "the cult of Thunderbirds has grown to near-mythic proportions." For Peel, Thunderbirds is "without a doubt the peak of the Supermarionation achievement". Suggesting that the series is pitched at a "more adult" level than its predecessors, he adds that its sense of adventure, effective humour and "gripping and convincing" episodes ensured that "everyone in the audience found something to love about it." Simon Heffer, a fan of Thunderbirds in childhood, commented positively on the series for The Daily Telegraph in 2011: "All the elements we children discerned in whatever grown-up television we had been allowed to watch were present in Thunderbirds: dramatic theme and incidental music; well-developed plots; goodies and baddies; swaggering Americans, at a time when the whole of Britain was in a cultural cringe to them; and, of course, glamorous locations ... Then, of course, there was the nail-biting tension of the rescues themselves ..." Film critic Kim Newman describes the series as a "television perennial". In his foreword to John Marriott's book, Thunderbirds Are Go!, Anderson put forward several explanations for the series' lasting success: it "contains elements that appeal to most children—danger, jeopardy and destruction. But because International Rescue's mission is to save life, there is no gratuitous violence." According to Anderson, Thunderbirds incorporates a "strong family atmosphere, where Dad reigns supreme". Both O'Brien and script editor Alan Pattillo have praised the series' positive "family values". In addition, Heffer and others have written of its cross-generational appeal. In 2000, shortly before the series' BBC revival, Brian Viner remarked in Radio Times that Thunderbirds was on the point of "captivating yet another generation of viewers". Stuart Hood, writing for The Spectator in 1965, praised Thunderbirds as a "modern fairy tale"; adding that it "can sometimes be frightening", he recommended that children watch it accompanied by their parents. Writing for Dreamwatch in 1994, Andrew Thomas described Thunderbirds as only "nominally" a children's programme: "Its themes are universal and speak as much to the adult in the child as the child in the adult." Jeff Evans, author of The Penguin TV Companion, argues that the series' 50-minute format allows for stronger character development and "tension-building". O'Brien is less positive in his appraisal of the writing, asserting that the plots