channel [channels](broadcasting: specific radio frequency or band of frequencies) noun [UK: ˈtʃæn.l̩] [US: ˈtʃæn.l̩]
television channel(a specific radio frequency or band of frequencies used for transmitting television) noun [UK: ˈtel.ɪ.ˌvɪʒ.n̩ ˈtʃæn.l̩] [US: ˈtel.ə.ˌvɪʒ.n̩ ˈtʃæn.l̩]