CBC has aired 139 episodes of the Canadian television series "Heartland" over eight seasons as of August 2015. CBC renewed "Heartland" for a ninth season, which began production in May 2015 and is scheduled to premiere on CBC on Oct. 4, 2015.
"Heartland" is a family drama set in Alberta and based on a book series by Lauren Brooke. When its 125th episode aired in October 2014, "Heartland" surpassed "Street Legal" as the longest-running one-hour drama in Canadian TV history. Stars Amber Marshall, Michelle Morgan, Graham Wardle, Chris Potter and Shaun Johnston appeared in all 139 episodes during the first eight seasons.