The Leelbox HD Antenna is on sale for just $5.99 using promo code SX4YDHW4 at checkout. I’ve never used this brand of antenna, but they seem to have decent enough reviews. If you’ve picked up a Fire TV Recast, which is on sale for $179.99 right now, you probably want to spend a bit more and get a better antenna than this, but this is likely sufficient to see what kind of channels you can get before going with a more expensive antenna. It’ll also serve as a good backup or alternative antenna, if you ever need one. The Leelbox antenna says it offers 60-80 miles of range and it comes with an amplifier to boost weaker signals that might otherwise be just out of range.