A method and an apparatus for switching input terminals based on a transmitted signal format are disclosed. The method includes issuing a command to a receiver when a format of the signal has changed from digital to analog. The receiver switches to an analog input terminal according to the command. The apparatus includes a transmitter and a receiver connected with each other with a digital interface and an analog interface. The transmitter has a command generator that issues the command. The receiver includes a switch to select an input terminal, and a selector to control the switch according to the command provided from the transmitter. The receiver also includes a digital signal processor coupled to the digital interface to decode digital signals.