Custom electronic program guides

A first device comprising:

• a collector to collect identifying information associated with media presented on a second device;
• a monitor to determine a geographic location at which the identifying information was collected;
• and
• a selector to determine that the collected identifying information is to be used in generating a custom electronic program guide when the geographic location is in a designated area and to determine that the collected identifying information is not to be used in generating the custom electronic program guide when the geographic location is outside of the designated area.

A tangible computer readable storage medium comprising instructions that, when executed, cause a machine to at least:

• collect identifying information associated with media using at least one of a microphone, a camera, or an optical sensor of a first device;
• determine a geographic location at which the identifying information was collected;
• and
• determine, based on the geographic location, whether the collected identifying information is to be used in generating a custom electronic program guide for a user associated with the first device.