What happens when I am in one activity and want to switch to another (such as switching from watching a DVD to watching TV?)
The Harmony does a good job of remembering “device power states” and switching between them. You do not have to “end” an activity, just press the “Activity” button and select another activity. For example, If you use an audio amplifier to control the sound as well as video sources, moving back and forth between two activities should seamlessly switch the amplifier’s audio/video port selections as well as reprogramming the remote keys to control what’s currently on the screen. However, remember that switching activities will re-execute the startup commands the selected activity each time you return to the activity… one example, don’t include an “eject” in the startup sequence if you might be switching from DVD to TV and back. By the same token, realize that switching activities may (and will) power down devices you may want to remain in order to return to that activity… there are, however, options to control this within the setup software.