High Quality Content by WIKIPEDIA articles! Dennis and Gnasher is a British/Australian animated television series currently being aired on CBBC Channel. Based on the original comic strips from The Beano, it features the adventures of the rebellious schoolboy Dennis the Menace and his dog Gnasher. The programme is aimed for 5-to-10 year olds and commenced on 7 September 2009 and ended on 2 March 2010 after 52 episodes. A second series scheduled for Autumn 2013 was announced on 21 January 2012.