The Entertainer is a widely popular toy store in the United Kingdom. It is widely known for it's charitable nature.
The first part of the pre-event was a flyer aimed at children, where they could fill it in, post it in a special box in store and then win their height in board games. Like all Entertainer contests, anyone over the age of 12 is exempt from entry.
Also, as part of their 35th anniversary celebrations and part of the christmas promotion, they were also giving lucky children the chance to win the entire contents of their christmas catalogue, which was valued around £13,000. All lucky people had to do, was guess what anniversary they were celebrating and then post the entry into the postbox in store. Anyone over the age of 12 was exempt from entry.