Assertion: tv's channel | /r/HasProperty | encoded
Facets:
Source sentences:
text: Stereo, or more generally multi-channel, audio is encoded using a number of schemes which (except in the French systems) are independent of the video system.
text: Some transmissions and channels are unencrypted and therefore free-to-air or free-to-view, while many other channels are transmitted with encryption (pay television), requiring the viewer to subscribe and pay a monthly fee to receive the programming.