Hello Eric,
First of all, thank you so much for being a customer!
At this time we don't provide any tallying of the hours that you have spent watching The PM PrepCast. This is primarily because most of our students actually download the lessons to their phone or tablet so that they can watch the lessons 'offline'. And there is simply no way for us to track what you watch on your phone after the download.
But don't worry about it at all. This is the main reason why we have implemented a 2-week long study period during which you cannot actually take the Final Exam. This means that if you purchased The PM PrepCast yesterday, you have to wait until exactly 2 weeks from the purchase day/time before the system will allow you to take the exam. And there is no doubt in my mind that you will have watched over 35 hours once the two weeks are up.