HDMI cable + A GPU with a HDMI output. Trust me, it's the easiest thing to do, I just output my PC to my TV and watch all my anime like that.
If you have mini HDMI on your GPU just get a Adaptor. They about R100 at Space or Ellies.
***Edit
http://i.imgur.com/fqs9Z.jpg
http://i.imgur.com/k449R.jpg
then I just full screen it and it's up scaled awesomely!





