I have Amazon Prime and have signed up online for IMDb. But I don't seem to be able to access IMDb content like Mad Men without paying for it. It's supposed to be free through Prime + IMDb. What am I doing wrong? I also can't locate the IMDb app on my 2018 Samsung Smart TV to try that route, it is not listed in the app store. I've tried to get to the IMDb database both through my TiVo Prime account and my Samsung Prime App. Help?