A:AnswerYes you can get Netflix and HULU, don't know about the ATT 2nd cable box we have connected to different streaming devices to ours's and it works fine.
A:AnswerAs long as you have spectrum cable on another tv you do not need to hook this samsung to another cable box. Just plug it in and download the spectrum app which is already on this tv.
A:AnswerYes. We use the Smart Things app on a phone & the TV. When we turned on the TV for the first time, we were at the Home screen where we were able to add YouTube . . .