Abstract: Transmitting an analog information signal, such as a standard analog television signal, with a digital information signal, such as a high or standard definition television signal, in single channel. A transmitter processes and band limits the analog information signal to have its own carrier signal and fit within one portion of the channel. The transmitter also processes the digital information signal to have its own carrier signal in another portion of the channel. The processed analog and digital information signals are added together and converted for RF transmission as a common transport signal.