As a result, reports Capital, the total number of channels in its portfolio will increase to eight.
They include the bTV niche services bTV Action, bTV Comedy, bTV Lady, bTV Cinema and Ring BG.
The move to bTV is seen as logical, given that Cartoon Network is operated by Turner Broadcasting, itself part of Time Warner, the majority shareholder in CME, the operator of bTV.
Up until now, Modern Times Group (MTG), the operator of Nova TV, represented Cartoon Network in Bulgaria.
Data produced by GARB indicates that Cartoon Network had a monthly audience share of 305,467 and an audience share of 7.3% in the 4-15 age group in December 2014.
BTV and Nova TV are the leading commercial broadcasters in Bulgaria.