The Walking Dead is very much alive. The show’s season 5 premiere marked the series’ highest-rated episode ever with 17.3 million viewers, up 7 percent from the previous record-holder, the season 4 premiere. The show was also up 6 percent in adults aged 18-49 with 11 million viewers. Speaking of the season 4 premiere, it now comes in second place for the show with 16.1 million total viewers and 10.4 million viewers 18-49. It was after seven days of DVR playback that the season 4 premiere became the most highly-rated episode in cable television history, something we’ll have to wait and see if the season 5 premiere can top.