<p>Never actually seen a TV tuner card, but I assume that's what it's for. Actually, nevermind, my roommate had one, and yes, that's what you use it for. I have a multi-function LCD monitor, so I just used it as my television.</p>
<p>Given that at least 3 nights a week I had to put up with my hallmates yelling at each other down the hall while playing Halo ("F*** you, you crouching little b*****!"), it's definitely possible and allowed. Each double room has one active ethernet port in the wall (there are two there, but only one works), and you rent out a 3-port hub for the year. So you could easily each have a port for your computers and one for XoBXisHUEGLOL, or whatever you please.</p>