I just wanted to reiterate that if you're having issues signing in the following workaround should see you sorted again.
Sign in problems
- Try to sign in again - Some customers have advised this issue was a temporary fault.
- Close the app by pressing the PlayStation button.
- Reset password via Sky.com on the PlayStation browser, Then logout and login to Sky.com within the PlayStation browser and if presented with the captcha, complete it.
- Once you're successfully able to sign into Sky.com.
- Open The TV from Sky app on the PlayStation and login with the new password.