Got amazon prime on the TV started watching supernatural seasons 1 through 12 paid a subscription fee to amazon then discovered couldn't watch 13 - through 15 even though we could see them without paying 2.99 to 3.99 per episode USD. for that price I could buy the complete Box Set of seasons 1 through 15 for the same price. I have stage 4 COPD and I don't have long left to live, I now will never get to see the completion of this series.