A set-top box may receive program guide information from a server. The program guide information may identify a group of programs and specify, for each program, an indicator of set-top boxes tuned to the each program or providing the each program. The set-top box may further provide, to a display and using the received program guide information, a program guide, where the program guide represents each program, in the group of programs, as a shape, and where a size of each shape corresponds to the indicator of set-top boxes tuned to the represented program or providing the represented program. The set-top box may also receive updated program guide information from the server and dynamically increase or decrease at least one shape in the program guide, based on the updated program guide information.