A:AnswerIt comes with Netflix, Hulu and Amazon Prime already downloaded. You can download other apps like YouTube, Vudu, ESPN, etc. There are apps not supported by Samsung Smart TV’s you ca Google the app you want it it will tell you if the app can be downloaded.
A:AnswerThere is a Sling TV app on this TV. I don't use an Amazon fire stick. It's not needed on the smart TV. Best Buy Geek Squad installed and mounted the TV on my wall for me at a reasonable price and set up my Netflix and Hulu Live apps and connected to my wifi. They showed me the shortcuts on the remote and answered all my questions. I am very pleased with the TV. I don't know the manufacture date. I bought it two days after Christmas.
A:AnswerThis may not answer your question, but here is what I experienced. I was able to connect my external soundbar through one of the two TV HDMI ports, but decided I needed that port so connected my soundbar through the digital/optical port (for which I had to buy a cable). In otherwise, this TV has two audio outputs that I have verified. It also has a USB port, but I did not use that, so don't know if it supports audio output.