Single, obviously because I watch probably 21-30 hrs a week lol.
This includes me listening/watching Sportscenter every day as i'm about the house going to and from work. I'm "watching" ESPN right now as I surf the web. Closer to 30ish+ during football/basketball season.
I live with my girlfriend but we're not married. We both watch:
~7 hours if you just include live TV
~12 hours if you also include shows recorded on DVR
~20 hours if you also include DVDs and Netflix