Image quality of set appears low quality, but this is only because it is difficult to photograph an image on a CRT screen. Anyone who has tried taking a photo of a TV, computer monitor, etc, faces this problem.
And don't worry, this project does not require modding, hacks, knowledge of how TVs or AV works and requires no tools.
Step 1: Know Your TV
Look at the front of the TV. What dials does it have? It should have a large dial with VHF on it. This is for channels 0-12, and if your TV also has a UHF dial, there should be a 'U' on the VHF dial.
If your TV has VHF and UHF, buy a 'UHF A/V Modulator'. Here is an example of one: http://www.dse.com.au/cgi-bin/dse.storefront/4c26c47100cf83f6273fc0a87e0106e1/Product/View/L1507
If your TV has VHF only, buy a 'VHF A/V Modulator'. I am unsure where you can find one, just search for it in Google. eBay is a good place to look too.
You can also buy combo modulators, that send both VHF and UHF signals. These are usually more expensive (about $80 USD, $100 AUD)
My Thorn 9000 is both VHF and UHF. If your TV has UHF, always buy a UHF modulator, as they have better picture quality and don't pick up interference as much.
In this project, I bought a DSE RF Modulator (L1507), which can be seen in the link above, or visiting dse.com.au. Your AV modulator will no doubt only have 75ohm output. To use this with your TV, you will need to buy a balun, also known as a 75ohm-300ohm matching transformer. One is pictured in Picture 2.
Step 2: Attach the Balun/matching Transformer
Step 3: Setting Up Everything
Step 4: Tuning the TV.
If your TV supports it, turn on the AFT (Automatic Fine Tuning) button. It should be on the front.
If you are using a UHF modulator, turn the VHF dial to the 'U' setting, and turn the UHF dial to the channel you selected on the modulator. The image should appear on the screen. If it's full of static, keep turning the dial till it gets better.
For VHF only TVs, turn the VHF dial to the channel you set the modulator to. If the image is fuzzy and broken up, turn the ring on the inside or outside of the VHF dial. You might need to push it down to adjust it. Keep turning the ring until the picture is clear.
Step 5: Finished!