Pido Products via Amazon offers the Nisgear 50-Mile Amplified Indoor HDTV Antenna for $19.99. Coupon code "4NBR8ZW4" cuts it to $9.40. Plus, Prime members receive free shipping. That's a buck under our mention from last week, $11 off, and the lowest price we've seen. It features a 10-foot coaxial cable and detachable signal booster. Deal ends May 26.