HDTV antennae for over-the-air signals don't exactly cost a lot of money, but if you're the DIY type and would rather make your own than buy, all it takes is some spare cardboard, aluminum foil ...

To make one, you'll need a cardboard tube, white paper, aluminum foil, tape and a pushpin or something else sharp to poke a small hole. According to "Let's Talk Science," you can put this viewer ...

To make one, you'll need a cardboard tube, white paper, aluminum foil, tape and a pushpin or something else sharp to poke a small hole. According to "Let's Talk Science," you can put this viewer ...

HDTV antennae for over-the-air signals don't exactly cost a lot of money, but if you're the DIY type and would rather make your own than buy, all it takes is some spare cardboard, aluminum foil ...