It is really simple to activate USA Network on Roku, you just need to go along with the steps given below:

1. Press Home button on Roku TV remote.

2. Launch the Roku Channel Store.

3. Search for USA Network and Add Channel.

4. Open USA Network and copy the activation code.

5. Go to usanetwork/activatenbcu on a browser.

6. Enter the USA Network activation code.

7. Choose your TV provider.

Now, you just Log In using the credentials with a TV provider and you will be able to watch all exclusive shows of USA Network on Roku.