Series 1 consists of 10 episodes all around 9 minutes long.

The second series consists of six episodes, also one hour long.

The show consists of 15 episodes over a single season.

The series consists of three episodes, each an hour long.

The program consists of 10 episodes, each 50 minutes long.

Each series consists of 66 episodes, with 33 schools taking part.

The series consists of 17 episodes each running 30 minutes.

Series two consists of six episodes all 30 minutes long.

The series consists of three episodes, each running at 15-minutes long.

The first series is considered to consist of 21 episodes.