In one of many possible embodiments, a system includes a media content processing subsystem configured to display a scrollable program guide graphical user interface. The graphical user interface is configured to show a multiplicity of blocks of information corresponding to a multiplicity of content carriers. The processing subsystem is further configured to display a magnified area within the program guide graphical user interface. When a block corresponding to a particular content carrier within the multiplicity of content carriers is entered into the magnified area, the processing subsystem is configured to display enhanced information corresponding to one or more media content instances transmitted via the particular content carrier.