[McGruff]

They are called http://en.wikipedia.org/wiki/TV_tuner_card. Basically you can watch TV on your computer and then take screen captures. Then you have to post the image on the Internet Imageshack or some other site. Then you link to the image.

You need a cable TV wire to hook on to the TV Tuner card. Mine is a inside the computer one but they have USB versions out now which means not opening your PC case.

Which is the best? I'll try to find some reviews and ratings.

[RDDABlack]

I found these screen shots annoying. They added nothing to the FR conversation. They slowed down the refresh and clogged the pages.

[WrightOnTarget]

Here's an interesting screen shot from the debate. Gotta love those live audience trackers.

[edzo4]

I can just pause the dvr take a picture with my phone and email it to myself

[TomGuy]

I have WinXP and a PCTV card (analog — have been looking around for a digital/HDTV).

I use SnagIt as the capture software to create the individual screencap.

[There are some freeware capture software, too.]

After you make the capture, you need a ‘parking’ website that allows linking to images. You upload your capture and link from that parking website. I use photobucket.com for mine, but there are some others that offer similar service.