The Jack is not a good performer on low and high VHF, and King knows it based on the marketing blurbs. When the current channel repack is done, there will be 496 remaining low and high VHF licenses, versus 1549 remaining UHF licenses. That's nearly 25% of the TV stations that the Jack is not well designed to receive. And actually more than that if we include the 152 stations that are giving up their licenses but many will remain on the air as a sub-channel of another licensee. The Winegard Sensar 3 and 4 are both well designed for optimum low/high VHF, with the Wingman yagi feature or add-on also optimizing it for UHF.