 " Hot to the Touch " aired on Cartoon Network on April 2 , 2012 . The episode was seen by 2 @.@ 655 million viewers . The episode also ranked as the number one telecast for all children demographics , according to Nielsen ratings . It also marked a 96 percent increase in ratings , when the numbers for " Hot to the Touch " were compared to the ratings for the same time period in 2011 . The episode first saw physical release as part of the 2014 DVD , Princess Day , which included 16 episodes from the series ' second through sixth seasons . It was later re @-@ released as part of the complete fourth season DVD in October 2014 . 
