The provision of more than one separate streams of television programming by a broadcaster
The communication process whereby group members use verbal messages, nonverbal messages, or both; some groups also use written or electronic channels; channels may be used singly or simultaneously
In wireless microphones, generally refers to a transmitter or receiver which has more than one user-selectable operating frequency
Pertaining to communications, usually full-duplex communications, on more than one channel Note: Multichannel transmission may be accomplished by time-division multiplexing, frequency-division multiplexing, phase-division multiplexing, or space diversity