Which "radio"? AM or FM? Amplifiers seldom improve FM reception, AM even less so.
However, most pre-amps that cover TV bands also amplify FM unless the specifications indicate otherwise by the presence of an FM filter or trap.
Sometimes, it's a bad idea to amplify and distribute FM signals with your TV signals, other times it doesn't matter. It all depends on the mix of frequencies and their relative powers at your location as to whether amplification should (or should not) be done or if it will likely to be helpful or detrimental.
Tech support for Antennas Direct