The LEGO Bob the Builder licensed subtheme was part of the DUPLO theme and based on the British children's television series Bob the Builder. The theme ran for eight years with only a small number of sets released each year starting in 2001 and is one of the longest running themes. Most of the sets were based on the vehicle characters seen in the show with some DUPLO figures including Bob, Wendy and Spud.
2006 LEGO Sets
2006 for LEGO was a year of new themes being introduced and a number of well known themes being retired. LEGO in 2006 introduced and discontinued The Avatar: The Last Airbender, introduced the original Batman theme, Exo-Force, Mindstorms NXT, SpongeBob SquarePants, Remote control Trains and Aqua Raiders. However, the following themes were discontinued; Clikits, Vikings. While LEGO Sports was re-introduced in 2006 with a couple Soccer/Football sets.