Answer:
The X-Rays have ranges of energies from 100 eV to 200 keV, this range is commonly knowed as X-Radiation, but the original name is "Röntgen radiation", after the scientist who discovered it, Wilhelm Röntgen.
The electromagnetic radiation that remote controls use is the Infrared radiation (or infrared light), where the energy is lower than the one of the visible light (this is why is called "infrared", because is below of the red frequency) and this is why you can not see these wave signals.
