Turbo Fire is Turbo Jam on steroids. I still use and love Turbo Jam. I think its a great investment for those days when you want to move and have fun but don't want to kill yourself in the process. Punch, Kick and Jam is a part of the Turbo Jam family and it is my all time favorite of that series. It has hiit workouts, but I can't remember if she referred to them as hiit. It's a great sweat fest, fun and I use it often. Cardio Party ( I think there are 3 of them) are also a part of the Turbo Jam family, they aren't my favorites though.