Animation and SFX were further enhanced in this series. A 24’ feature length Special ‘When You Wish Upon an Oak’ was commissioned by CBeebies in 2013 and premiered on New Year’s Day 2014[7]. Series 4 completed the production at the end of 2015, with the first episode having aired on 2 March 2015[8], bringing the total number of episodes to 104 x 11’[9].