Super Deal via Amazon offers the ViewTV Indoor 50-Mile Amplified HDTV Antenna, model no. LYSB0158SZZOY, for $19.99. Coupon code "NOD9MRBM" drops it to $9.99. Plus, Prime members bag free shipping. (Non-members can spend $49 to bag free shipping; otherwise, shipping adds $6.71.) That's $59 off list and the lowest total price we could find. It features support for 1080p, 1080i, and 720p and includes a 12-foot cable.
Also available for Prime members is the ViewTV Indoor 60-Mile Amplified HDTV Antenna, model no. LYSB0170AHVVS, for $12.49 with free shipping via the above coupon. That's $13 off and the lowest total price we could find. It has the same features as above with a longer signal range.