The following is an episode list for the British children's animated television series Bob the Builder, which premiered on 15 May 1997. The series finale aired on 31 December 2011 as a mini series titled The Big Dino Dig, which ended the original series after 18 seasons. Series overview Original series (1999–2004) The following series were originally shown on BBC One in the CBBC portion of the schedules. Bob the Builder is now on CBeebies, BBC Two, and Nick Jr. All episodes were produced by HOT Animation for HIT Entertainment. Pilot (1997) Season 1 (1999) Season 2 (1999) Season 3 (2000) Season 4 (2001) Season 5 (2002) Season 6 (2002) Season 7 (2003) Season 8 (2003) Season 9 (2004) Project: Build It (2005–2008) This show was centered around Bob and his crew's adventures in their new home of Sunflower Valley. Many new machines were introduced, and throughout the episodes Bob always tried to be eco-friendly. The show's intro begins with one of Bob's crew and one of other machines doing the job before Wendy and Bob wave good morning and begin their jobs. The show ends with Bob's crew going to sleep and Wendy and Bob waving good night before one of Bob's crew and one of other trucks does the job. All episodes were produced by HIT Entertainment, CBeebies, and PBS Kids. The spin-off began production in 2005 running through 2008. Season 10 (2005) Season 11 (2005) Season 12 (2006) Season 13 (2006) Season 14 (2007) Season 15 (2007) Season 16 (2008) Ready, Steady, Build! (2010–2011) The second spin-off is Bob the Builder: Ready, Steady, Build!. In June 2008, after production of Project: Build It wrapped up, it was announced that the series would be revamped for environmental CGI. The gang has now apparently moved to a place called Fixham Harbour and the show is now animated in CGI stop motion animation instead of the traditional stop-motion animation. It features new characters that can move on water. The models have CGI faces. The characters from the previous spin-offs (like Gripper, Grabber, Splasher, Scrambler, Packer, and Ella) are still present. Bob's Parents, Benny, Zoomer, Sumsy, Tumbler, Flex, and Bristle appear to have their last appearance in Project: Build It currently. There's a segment called Bob's Jobs where a live action child appears on Bob's computer screen and needs help but Gripper and Grabber come in with stuff like rocks, crates,