Getting Started with Harmony 665

Walk through our setup tutorial: adding your home entertainment devices, setting up one-touch Activities and learning more about the usage of your remote. Already set up and something's not working? Our troubleshooters and support articles will help set things right.

Lets get started.

Discover Harmony
What's in the box
Adding devices and Activities
Product features
Support articles

Understanding how Harmony works

Your Harmony 665 allows you merge the remotes of up to 10 of your home entertainment devices into one so you can, and should! keep those other remotes out of sight.

The Harmony software will guide you through entering the manufacturer and model numbers of your home devices so Harmony understands how to control them. It then helps you create Activities (or scenes) so you're only one-button away from watching television or playing a game.

Let's get started

Understanding Harmony Activities

What's in the box

Harmony 665 remote

Harmony 665 remote enables one-touch Activity based control of your home entertainment system.

Two AA batteries

Two AA batteries come included with your Harmony 665. Remove the back battery cover and insert the two AA batteries into the remote.

USB cable

Your new remote is configured by connecting your Harmony 665 to your laptop or desktop computer using the supplied USB cable, and signing in to the Harmony software.

Adding Devices and Activities

  1. Download and install the Harmony software.

  2. If this is your first Harmony remote, create a new account.

    If you already have a MyHarmony account then you may sign in and add this new remote to your account.

  3. Ensure you've installed the two AA batteries into the back of your remote.

    Using the supplied USB cable connect Harmony 665 to your computer.

  4. If this is your first remote then you'll be prompted to enter the manufacturer and model for each of your home entertainment devices.

    Learn more about finding your device's model number.

    Are you upgrading an existing Harmony remote? You may also choose to import your previous remote settings.

  5. Once all your devices have been entered, the Harmony software will prompt you to create a Watch TV Activity.

    You'll be asked what input each of your devices have to be on in order for you to see video and hear sound. Follow the on-screen instructions, or learn more about creating a Harmony Activity.

  6. That's it! Click the Sync button to transfer these settings to your remote.

Product features

Harmony 665 features

Press the Off button to power off all your entertainment devices.

Tip: You do not need to press Off when switching between two Activities. Harmony will remember what is already powered on and only change what's needed.


There are 3 direct Activity buttons, plus a "More" button that will display additional Activities on the remote screen.

After creating Activities using the Harmony software you can star your entertainment system with these one-touch buttons.


Did one of your devices not power on, or switch to the correct input? The Harmony Help feature will ask you a series of questions to bring everything back in sync.


Use the 4 side buttons to select items from the LCD screen.

You can customize the commands that appear on your screen or even add Favorite Channels.

Side Buttons

The bottom button toggles between Activity and device mode.

It's best to always use your remote in Activity mode so Harmony can keep all your devices in sync.

Bottom Buttons

The Harmony 665 buttons are automatically mapped based on the Activity you're in. While watching TV, the channel buttons will control your cable/satellite box. While listening to music, the channel buttons may change radio stations.

Want to customize these? Learn more about button mapping.

Customize your Harmony

Setting up Favorite Channels

Add up to 23 Favorite Channels to your screen, with icons or station names. Learn more about Adding Favorite Channels.

Adjust and tweak each of your buttons.

Create as many Activities as you'd like and tweak what each button does or which commands appear on the screen.

Using your Harmony

Understanding Activities

Unlike other universal remotes that may control devices individually, Harmony controls an Activity such as Watching TV or Playing a Game. You don't need to choose which device you want to control. Start your Watch TV Activity and your volume will automatically control the stereo, and channels will automatically change your TV or cable/satellite box. Watch this video to learn more.

Keep your devices in sync

To help keep your Harmony in sync with your devices, avoid turning your television, cable/satellite box and other devices on and off manually or by using their original remote control. If something didn't turn on then use the help feature.

Additional support resources

Having trouble with one of your Activities?

If one of your devices didn't power on or change to the correct input, then we recommend using our Activity troubleshooter to help narrow down the problem and find a solution.


Do more with your Harmony 665 remote

Have more questions or suggestions?

Download the setup software

Depending on your remote, you can set up and configure Harmony using either the Harmony software or Harmony mobile app for iOS and Android.


Harmony community forums

Post a question to the Harmony forums. Our Harmony product managers also actively participate and provide technical advise.


Contact the Harmony Team

Harmony comes with a period of free email and phone support. You also have unlimited access to our online support community.

Contact Us

Harmony Helper

Do you need help finding anything?