it in turns to find their colour. The first to have all five of their colour revealed is the winner and advances to the new final round, "The Vortex". The Vortex is "a true test of skill, nerve and judgment". It consists of a "mini velodrome" which flashes between red and black at a constant rate. The aim is to watch the sequence and adjust the power of the launcher, which will fire a ball into The Vortex. If the balls lands in the End Zone in the contestant's chosen colour, they win the jackpot (starting at £500,000), or else it will increase by £500,000 for the next show. Rounds Notes : 'Spell Check' featured Jonathan Ross and Carol Vorderman as participants : 'Roses' featured a dance performance by Derek Hough and Peta Murgatroyd : 'Spin-off' featured Rizzle Kicks' performance of "Down with the Trumpets" : 'Speed Darts' was played by Adrian Lewis and Phil Taylor Episodes The coloured backgrounds denote the result of each of the shows: – indicates the contestant won the whole show, chose the right colour in the final round and won the Jackpot. – indicates the contestant won the whole show but chose the wrong colour in the final round. – indicates a decision was reversed regarding the final round. * Chris's loss on the Vortex was reversed after a review of a smaller camera underneath the Vortex that showed the ball dropping and landing milliseconds before the change in colour to red, thus the money was awarded to him – also note that the rollover still stood. Reception Ratings Series 1 In the week prior to the launch of Red or Black?, ITV had slipped behind Channel 5 in the ratings on the Sunday night while BBC One had nearly three times the audience share of the ITV channel. While the lead was not as large on the remainder of the evenings, BBC One still beat ITV every night on the overall primetime audience share, except for Thursday night. Red or Black? launched on Saturday 3 September 2011, with 6.41 million viewers, giving the show a 29.8% share of the market between 7 pm and 8:15 pm, beating the Doctor Who episode "Night Terrors" into second place with 5.54m. It returned later in the night with 6.93m. However the episode of The X Factor broadcast between the two episodes received a much higher number