DuaFire via Amazon offers the DuaFire 25-Mile Ultra-Thin Digital Indoor HDTV Antenna, model no. 10008782, for $10.59. Coupon code "O37QDAYS" cuts it to $6.35. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.23.) That's $24 off list and the lowest total price we could find. It supports up to 1080p and features a five meter coaxial cable.