My dad and I are thinking of building a computer that would be hooked up to our living room TV and work as a DVR/movie storage/super cool place to play video games on a TV. Would this build work for that? I don't know anything about anything.
http://pcpartpicker.com/p/NLM9RB
If you don't know anything about building, its best to do your research first, and lots of it.
That video card is not needed, its best to go for something a little better and get less ram. 16 gb is not needed, especially for a a simple entertainment system.
You did ok though by going for Mini ITX since it fits the Entertainment center look.
Dont know how much you are willing to spend, but if you are willing to spend more, id say go for intel, but other people could give a lot more infor on whats better.