Radio and television, microwaves, infared, visible light, ultraviolet light, x-rays and gamma rays are all the same thing. The only difference is radio has long wavelengths and low frequencies, while gamma rays have short wavelengths and high frequencies. The colors we see with the eye are part of the same electromagnetic spectrum as dental x-rays, radar beams, and microwave ovens.
So there is some kind of reciprocal relationship whereby one has never discovered a long wave with a high frequency or vise versa? Just asking.