Watch and record high definition television with a $10 antenna, a $175 decoder card, and some free software. By Erica Sadun

image The other night, I popped over to Target to pick up an antenna. You remember what those are, don’t you? Those telescoping metallic things that connect to television sets? That predate cable? Rabbit ears? I was about to buy my first antenna in something like 20 years. I am such a cable-generation baby, I felt like I was walking into a time warp (and not the good Rocky Horror kind, either) until I walked into the actual aisle.

It was the packaging that hit me first. Target had about a dozen or so antennas on ...

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