Set up the new TV using my partners google account added my google account and when I go onto youtube and press Sign In it asks if I want to sign in as my partner or manage accounts, when I press manage accounts my account is there but I can't click on it.
It lists my partners account under 'Google TV Accounts' and my account under 'Other Accounts'
The tv is a SONY BRAVIA XR-77A84KU
May be some kind of software issue or a bug.
You can try StubeNext which is on github.