In my opinion, the best box out there is the Zenith DTT 901. I believe LG actually makes the product, or used to. These days, it''s very difficult to find, and often sells for well over $100.00. A far cry from the $60.00 it used to be in the middle of the digital conversion, when the $40.00 coupons made it an easy purchase. It has very good signal strength, and a well made remote. Try Amazon or Google it to find the best price. You'll have to decide if the money is better spent going towards a new TV.
But before you invest in either one, a visit to antennaweb.org is a good place to find out just how much you will get over the air. When I cut the cord, I was pleasantly surprised to find 23 channels available OTA, and that number has now grown to 31, with more local affiliates making use of the sub channels. Make sure to fill in your full address, not just a zip code, at antenna web. In addition to distance from the local transmission towers, altitude is critical. Only a compete address will take that into consideration.
Good luck. OTA TV is out there for a lot more people than realize it. The picture is perfect and the HD is gorgeous, all the more so when it's free.
LG 42" 1080, Sony S550 Blu Ray, Pioneer VSX 512S, Harmony One, Roku 3-wired, Fire TV Stick, FlircUSB, 30Mb, Antenna. Coventry RI, USA