An Activity is what you do with your entertainment system. Common activities include watching TV, listening to music, watching a movie, and playing a game.

With your Harmony remote, you can set up an Activity so that a single button on your remote turns on the necessary devices, and switches to the required inputs. For example, pressing the Watch TV button might turn on your TV,  your cable or satellite receiver, and your audio receiver, and switch to the correct video and audio inputs. The Activity also determines which devices handle important functions such as changing channels or controlling volume.

When you press an Activity button, your Harmony remote:

• turns on the devices you specified for the Activity
• turns off all other devices
• switches the devices to the correct inputs for the Activity, and
• sets up the remote's buttons to control the devices in the Activity (such as changing channels or controlling volume).