My daughter is headed back to college in a week and just got a new 15" rMBP. She was wanting to get an LCD TV, but my suggestion to her was that instead she get a 27" 4K monitor for her rMBP, and then use the HDMI port to attach either a cable box or DVD player (or both if there are 2 HDMI ports). This would take up less space in her room. After thinking about this for a while, I am now wondering about sound in this setup. I'm assuming that if the display has speakers, then it would work fine... but if not, then seems like it would get complicated and messy to deal with. She needs a simple setup. She's a Graphics Design student, so quality of the display is very important as well. Any advice on how to get this to work.