I already use my TV as a monitor for my computer, Is it possible to make the TV play through my computer so i can listen to my TV shows through my headset?
My headset is a USB so I can't just hook it into my TV's 3.5mm hookup.

Sorry for the randomness of this question, and sorry if this is the wrong place to ask/we already have a thread for questions like this.
Thanks in advance.

Unless you watch tv on your computer through the internet, no. You could buy a cheap http://www.ebay.com/itm/Sync-and-Charge-3-5mm-male-audio-USB-2-0-Type-female-converter-Cable-cord-/140672418029?pt=Other_MP3_Player_Accessories&hash=item20c0bac0ed and hook it up to your tv.

There are Tuner's you could buy but I'm not to familiar with any.

You'll need a TV Tuner card. You plug your TV service into there (cable, antenna, set top box, whatever you use for TV), and then you'll need to configure Windows Media Center (Windows), MythTV (Linux, Mac) or mplayer (cross-platform) to use the TV tuner. With Windows Media Center and MythTV you can use it as a full-functioned DVR, whereas mplayer is more of a TV window option with mild recording capabilities. Of them all, Windows Media Center is the simplest to set up and instructions are readily available.

As for a TV Tuner card, hauppauge ones are usually of good quality.

If you mean just the audio from the TV, then connect it to the line-in on your sound card and http://i.imgur.com/s2dQc.jpg.

Wish we had a little "+ rep" thing in the forums for helpful posts.