A:AnswerYes, you choose what channels (Hulu, Netflix, etc) to put on your home screen on setup. You then sign into your account on each, and only have to do that once. I'm attaching a photo of my home screen so you can see the example.
A:AnswerThe only audio output options are digital optical audio and 3.5 mm headphone style jack. If that works with your system I guess it will work. I was a little baffled not to have an HDMI output but I am a little challenged in this area and had to spend some time researching. Of course, if I had read the install instructions a little better (they state pretty clearly that those are the 2 options for audio out), I would have saved a lot of time.
A:AnswerYes, you can watch local channels if you hook up an antenna. You don't need to subscribe to anything to watch local channels.
If you want to stream TV shows via an ABC, NBC or CBS app, only then would you need to subscribe to the app. Ignore the previous answer.