Need a little help with PlayStation Now and my Samsung 4K TV?

Okay, so I have a Samsung HU8550 4K TV and I recently upgraded it with the new UHD Evolution Kit. So according to Samsung, my TV should be at least the latest and greatest internal spec wise.

I recently found out that my TV was compatible with PlayStation Now and I've been a little curious to try it out. I have a PS4, and for some reason even though we no longer had a PS3 in our household for the longest time still have the controller for it. So I went to go find the PlayStation Now app, and I can't find it for the life of me. I've Googled search to see if Samsung once upon a time had it and removed it, but all reports show that my TV is compatible and that I should have it. Nothing that says it's been removed, and no articles slamming Samsung for removing it.

So I was curious if anyone else would know if they removed it, or if you have a Samsung TV and still have it. I'm at a lost on how to find the app, or am I missing something that I need to have to make it work?