A navigation system comprising a receiver module that receives a stream for a broadcast content and a control unit in communication with the receiver module. The control unit determines whether the stream for the broadcast content contains information that matches to a keyword from a stored list of keywords, identifies a landmark that is associated with the keyword, determines whether a position information for the landmark resides with a map area to be displayed by the navigation system according to a detected position for the navigation system, and prompts a map area display of the map area having a landmark display for the landmark that is superimposed within the map area display.