On your Xbox or PlayStation, download the My5 app, open it, and input the code displayed at How do I activate My5 on PlayStation/Xbox? to activate it.
You can reset your How do I reset my My5 activation code? by launching the app on your device and choosing to create a new code.
Logging into the app and going to the activation page will allow you to request a new How to get a new activation code for My5
Go to How to enter the My5 code on your TV? type the code that appears on your screen, and click "Activate" to begin streaming. This is how you enter the My5 code on your TV.