A transmission spectrum historically associated with analog broadcast
signals is leveraged for digital transmission to provide broadcast
channels and user-requested channels to a specific geographic region. In
addition to broadcast data such as television programming, digital
newspapers, and movie channels, back-channels are used to provide
interactive and bi-directional communications necessary for on-demand
content, internet access, video games, telephone services, and the like.
The back-channels may be transmitted via wireless, telephone modem, DSL,
or other means. The broadcast license associated with the present
invention may be a commercial broadcast license, a public service
license, a low power license, or the like. To increase the available
channels and associated services, the original analog signal may be
replaced by digital transmission signals. To further increase the
quantity of services, directional transmission and reception of both
user-requested channels and back-channels may be used along with multiple
transmission towers to support those channels.