An exemplary computer-implemented media service system detects an input command provided by a user to initiate a viewing session by way of a display screen in communication with a media content processing device that operates in accordance with a media service, identifies a context within which the input command is provided by the user, selects, based on the identified context, a media program available by way of the media service and that is potentially of interest to the user, and directs the media content processing device to present the media program by way of the display screen when the viewing session begins in response to the input command. Corresponding systems and methods are also described.