Some radio stations broadcast regularly on Esperanto. And it’s possible to hear some broadcasts not only on TV but also
in Internet. Among Esperanto radio stations are: Cina Radio Internacia (International Chinese radio), Radio Havana Kubo
(Radio of Cuba), Radio Polonia ( Polish radio), Radio Vatikana (Vatican Radio)

Useful references:

Admirers of Esperanto radio (AERA)

Archive Esperanto radio in MP3

Esperanto radio in DMOZ