Changes

==Sub-channels==

==Sub-channels==

Digital television allows for sub-channels in addition to the main channel.  For example, on the ION television network (formerly [[PAX television network]]), the digital signal from their broadcast stations includes the main channel, the [[Qubo]] cartoon channel, ION Life (a lifestyle, food, and exercise channel), and the Worship Channel.  Thus, the digital broadcast signal from the local ION channel carries four channels instead of one.  Other stations are doing likewise and carrying additional sub-channels, such as [[weather]]-only and [[movie]]-only programming, making the availablity and quality of digital television programming available free over the air potentially comparable to that of [[cable]] television.

Digital television allows for sub-channels in addition to the main channel.  For example, on the ION television network (formerly [[PAX television network]]), the digital signal from their broadcast stations includes the main channel, the [[Qubo]] cartoon channel, ION Life (a lifestyle, food, and exercise channel), and the Worship Channel.  Thus, the digital broadcast signal from the local ION affiliate carries four channels instead of one.  Other stations are doing likewise and carrying additional sub-channels, such as [[weather]]-only and [[movie]]-only programming, making the availablity and quality of digital television programming available free over the air potentially comparable to that of [[cable]] television.

==References and notes==

==References and notes==