Abstract: A media center and an audio visual (AV) unit may be remotely synchronized on the same remodulation channel. A system may include a media center connected to an audio visual (AV) unit; and a remote control unit to activate the media center. The remote control unit may receive signals from the media center to indicate a transmission channel for the AV unit, and the remote control unit may send the received signals to the AV unit to independently cause the AV unit to switch to the indicated transmission channel.

Abstract: A device is presented including a processor. A memory is connected to the processor. The processor calculates calorie burn. The memory has a many data objects for storing data accessed by an application program that is executed on the processor. The data objects include a first data structure that is stored in one of the many data objects. The data structure includes a formatted exercise data block used by the application program. The formatted exercise data block includes many formatted exercise intensity data blocks that have polynomial parameters. Also, a second data structure is stored in another one of the many data objects. This data structure includes a formatted calorie calculation block used by the application program.