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If you don't remember the password, then you have to reset the password. You can reset it from here --> https://iforgot.apple.com/
Go to the above website. Use the "Get an Email" method to reset the Apple ID. Apple will send the reset instructions to the recovery email you setup with your Apple ID. It would be your email registered with Apple, like Gmail, Yahoo etc. Open your email and you will see the email from Apple. Open it and follow the instructions to reset the password.
If that didn't work, then go to this site again --> https://iforgot.apple.com/
This time use the "Answer Security Questions" and answer the security questions there to reset your account.
Note : Apple ID would be your email address. If you don't have an Apple ID, then you can create one from here --> https://support.apple.com/en-in/HT203993
Please let me know if that didn't work, so I will continue to help you.
FYI You also need a WiFi password ***** connect your Apple TV to your WiFi network. This is different from Apple password. Let me know if you don't know your WiFi password
Hi there, I'm just checking. How is it going ?