Lot of missing and misunderstood information about 5G. Wiki it. It is mostly intended for very high, millimeter wave, frequencies, which have penetration concerns, but:
"Low-band 5G" and "Mid-band 5G" use frequencies from 600 MHz to 6 GHz, especially 3.5-4.2 GHz. Note T-Mobile is deploying 5G in the low band. Greater range and penetration but at lower speeds. They will likely also use some hi band for 5G in selected (urban) areas.
Note that at these frequencies, 5G is similar in performance to 4G, all things equal. They won't BE equal, but lower frequencies will greatly reduce speeds, while improving penetration.
Note, also from Wiki:
Over-the-air television channels are divided into two bands: the VHF band which comprises channels 2 through 13 and occupies frequencies between 54 and 216 MHz, and the UHF band, which comprises channels 14 through 83 and occupies frequencies between 470 and 890 MHz.
Actually, UHF now cuts off around 600 MHz. Compare this to the planned 5G hi band frequencies of 26, 28, 38, and 60 GHz.