United States
The ATSC digital television standard used in the United States supports multiple program streams over-the-air, allowing television stations to transmit one or more subchannels over a … See more

In Japan and Latin America (except Colombia, Mexico and Panama), ISDB (similar to the DVB format) is used, and was specifically … See more

Commercial networks
In the United States, digital subchannels have been used to provide programming from multiple major networks on a single television station. This has become prevalent since the late 2000s in smaller markets See more

• In-band on-channel (IBOC), digital radio technology allowing digital subchannels on FM stations
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Australia
Australian digital subchannels are currently divided between high definition (HD), standard definition (SD) and radio subchannels (the latter type is only carried by the stations of non-commercial networks See more

As the amount of data which can be carried on one digital television channel at one time is limited, the addition of multiple channels of … See more

Various forms of digital radio also allow for multiple program streams.
HD Radio
The primary distinguishing feature of HD Radio has … See more