118 without requiring any further input to be received from the client computing device in some implementations the client application 106 provides on the display screen of the client computing device 102 a visual indicator e g displaying the broadcast frequency and or call letters of the alternate media station that content is being received from the alternate media station the server application may be implemented to initiate a transmission of content to the client computing device simply by sending the client application the appropriate transmission channel identifier in another example a client computing device is a head unit of an automotive audio system the head unit includes a processor and a memory on which a client application and a data store of records may be stored the client application may be pre stored in the memory of the head unit prior to installation or downloaded over the air from a client application store on the internet information forming the data store of records may be periodically refreshed e g through over the air updates so that current information is made available to the client application at all times a user launches the client application on demand by selectively entering input commands through a user interface of the head unit in some implementations the input commands are received via one or more physical buttons located on a front plate of the head unit in other implementations the input commands are received through a user navigation of menu options provided on a display screen of the head unit in a manner similar to that described above with reference to the portable multifunction device example a u201c current location u201d of the head unit is set and a visual representation of a set of transmission channel identifiers is.