<Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Th> Website </Th> <Td> www.cwtv.com/shows/penn-teller-fool-us/ </Td> </Tr> <P> Penn & Teller: Fool Us is a British - American television programme . Its first two seasons were hosted by Jonathan Ross, and the third and fourth seasons by Alyson Hannigan . Fool Us was filmed at Fountain Studios in London, England (Season 1) and the Penn & Teller Theater in Las Vegas (Season 2 onward). Fool Us is a magic competition in which magicians perform tricks in front of American magician - comedian duo Penn & Teller . If Penn & Teller cannot figure out how a trick was done, the magician or magicians who performed it win a five - star trip to Las Vegas to perform as the opening act in Penn & Teller's world - famous show, also at the Rio Hotel & Casino . </P> <P> It was announced on 28 June 2012 that ITV had cancelled the show, despite an averaging 4 million viewers, higher than the norm for the timeslot . After finding moderate ratings success in running the ITV - produced episodes during the summer of 2014, The CW ordered a second season of original episodes to air in 2015 . The second season was a ratings hit for The CW, giving the network its highest ratings in that time slot compared to the previous 5 years . On 11 August 2015 the series was renewed for a third season by The CW . Season 3 premiered on 13 July 2016, now hosted by Alyson Hannigan . The fourth season premiered on July 13, 2017 . The series was renewed for a fifth season . </P>

Where is penn and teller fool us filmed