Countdown (game Show) - Format

Format

Countdown has occupied a tea-time broadcast slot since its inception. Currently an episode lasts around 45 minutes including advertising breaks. During the normal series, the winner of each game returns for the next day's show. If a player wins eight games, he is declared an "octochamp" and retires until the series finals. At the end of the series, the eight players with most wins (or the highest total score in the event of a tie) are invited back to compete in the series finals. They are seeded in a knockout tournament, with the first seed playing the eighth seed, the second playing the seventh, and so on. The winner of this knockout, which culminates in the Grand Final, becomes the series champion. Each series lasts around six months, with about 125 episodes.

Approximately every four series, a Champion of Champions tournament takes place. For this, sixteen of the best players to have appeared since the previous Championship are invited back for another knockout tournament. The producer, former contestant Damian Eadie, decides which players to include, but typically the tournament includes the series winners and other noteworthy contestants. Series 33 was designated a "Supreme Championship", in which 56 of the best contestants from all the previous series returned for another knockout tournament. Series 10 champion Harvey Freeman was declared Supreme Champion after beating Allan Saldanha in the final. There are also occasional special episodes, in which past contestants return for themed matches. For example, David Acton and Kenneth Michie returned for a rematch of their Series 31 final, while brothers and former contestants Sanjay and Sandeep Mazumder played off against each other on 20 December 2004.

The game is split into three sections, separated by advertising breaks. The first two sections each contain four letters rounds and a numbers round, while the last section has three letters rounds, a numbers round and a final "Conundrum". At the end of the first two sections, Hewer poses an anagram with a cryptic clue for the viewers, called the Teatime Teaser—the solution is revealed at the start of the next section. When the Teatime Teaser was first introduced, the anagrams were seven letters long, but they have since been extended to eight.