This is the main communal room of the residence. It would likely host chairs, a couch, speakers, and a television. Since your TV might be too far from the window, there will be an ethernet port, and electrical outlet. This will allow you to plug in an OTA? DVR? such as the Tablo. With a smart TV, you will be able to watch live, and recorded television from any supported room of the apartment. You just need a smart TV.
The great room will be adjacent to the kitchen, and a lavatory. This will allow people that are cooking to also be part of the communal space, and anyone needing to use the toilet can go to the lavatory rather than going into the private space of the apartment. From the great room, there will be a hall to the office, laundry closet, and bedrooms.