A:AnswerYes also you can just cast it i have this tv in my bedroom i use a cheap tablet as my remote and i can cast anything from my tablet to the tv (no lag) youtube hulu netflix movies anything !!! But YES the TV has a youtube tv app
A:Answermy son in law set mine up. I also have xfinity so it should work for you. You may only need your comcast user/password. I advise you to check with comcast on line or phone.. it takes some patience, but they are usually pretty helpful.