Well, Steve could use a NUC plus a network tuner, such as a HDHomerun.
But I believe that a NUC is still limited in GPU power, and HDMI audio still has issues, so if you want to watch the latest movies and want to listen to the latest audio format for the movie, a PC would be better. Also, a PC can have a Blu-ray drive in it. While you could attached a USB optical drive, USB connected drives can have issues.