Channel 4 has launched an advertising campaign to promote the Grand National, which takes place at Aintree on 6 April. In the 90-second spot, which was created by 4Creative, locals watch ten horses competing in a race across the city of Liverpool. The horses gallop through streets, allotments, back gardens and parks, jumping over cars and benches. The TV ad is set to Thar She Blows by The Night Marchers and features commentary from Simon Holt. It was created by Chris Bovill, John Allison and Keith McCarthy, who also directed the ad. The spot will be supported by a poster campaign featuring the jockey Ruby Walsh.