High Quality Content by WIKIPEDIA articles! The NBC science fiction serial drama series Heroes follows the lives of people across the globe who possess various superhuman powers as they struggle to cope with their everyday lives and prevent foreseen disasters from occurring. The series premiered on American and Canadian television on September 25, 2006. The first season, which finished 21st of 142 American primetime television programs in Nielsen ratings, was released on DVD and HD DVD on August 28, 2007. The second season ranked 21st of 220 in the ratings, and was released on DVD and Blu-ray Disc on August 26, 2008 with the Blu-ray release of the first season.