PC Monitor Question

first off.. you need to give us some system specs or we cant tell if your PC is HDMI compatible.

HDMI is a pretty common way to connect a monitor. You should have no trouble using your TV as a monitor - it'll probably be a little lower resolution than a standard monitor, and you might have to mess with the under/overscan settings on your video card to make it fit the screen properly, but it's mostly just a matter of plugging a cable into the TV and your video card and then selecting the appropriate video input on the TV.

As for buying cables, you'll certainly need something to connect it with. If your video card has HDMI-out you can just get a standard HDMI cable. If not, you probably at least have DVI-out on any vaguely recent video card, so you can either use a hybrid HDMI-DVI cable, or get an HDMI cable and a Female HDMI to Male DVI adapter to connect it to.

Also, in case it needs to be said: do not, do not, DO NOT buy an overpriced HDMI cable from one of the big retail stores. BestBuy and the like love to try to sell them for like $30, when you can easily order them online for no more than a couple bucks.

Use a common HDMI Cord, in a walmart or something like thath its selling a HDMI Cord

The graphics card will tell you if it has an HDMI port, IF it has, then check if the TV has one, which it should, if both of them have the port, then you just need an HDMI cable, cable then you just plug both, it may look weird, just update graphics card drivers, thats it, im using my tv as monitor :3

Are you actually serious? Yes you need to plug your pc into whatever screen you are using, be it a monitor or tv... It doesnt have to be hdmi, most tv's also support vga or dvi inputs... Just gather up all your cables and take a look at whether they can be plugged into your tv, and if you find one that can see if you can plug the other end into your pc... I honestly don't know how to explain it to someone on your level in any other way.

You will need a quality graphics card which supports DVI and/or HDMI (the only quality difference between them is digital audio signal through HDMI). Your HDTV will also required one of those. Note that with TV connection normally the signal is limited to 60Hz (unless your TV is designed for gaming, consoles, or fast pase action/sports. Resolution might also be limited to 1920x1028. Pixels are larger and blurry compared to a pc monitor but in a way lower resolutions don't look as bad from distance (game consoles have 3x less quality than a pc but get away with it).

HDMI should do fine, they are cheap at places like Monoprice, amazon, and ebay, honestly don't fall for the expensive cord trap, 99 percent of them are perfectly fine and will yield the same results as a 50 bucks cord. You should look into IPS monitors once you have cash.

or you can try with DVI..same quality and sometimes you can buy it cheaper than HDMI. and if you have a good monitor never ever go with VGA because the quality is crap.

Edit: Since i don't think you need a long cable you can try to buy it from ebay at a low price