The series finale, "", received the highest ratings of the series. Its 19 July 2008 premiere averaged 5.6 million viewers, 95% more viewers than Nickelodeon had received in mid-July 2007. During the week of 14 July, it ranked as the most-viewed program for the under-14 demographic. "Sozin's Comet" also appeared on iTunes' top ten list of best-selling television episodes during that same week. "Sozin's Comet"s popularity affected online media as well; "Rise of the Phoenix King", a Nick.com online game based on "Sozin's Comet", generated almost 815,000 game plays within three days.