Thomas and Friends is a LEGO DUPLO subtheme based on the Thomas the Tank Engine television show, train toys and The Railway Series books. The theme was released in 2005 in North America and later in 2007 in the UK and was discontinued in 2010. Fifteen sets in all were produced.
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.