Can I have more information please?
Yes you can have Starhub TV+ service without using Starhub Fibre Internet.
You have two choices in that case if you watch to watch on big screen.
1) Using you mobile phone and then cast to your TV, with the help of Android TV OS device or Chromecast dongles.
2) If you do not want to cast, you have to use the Starhub TV+ box, which seems to have FW stability issues.
And take note you will have no access to MediaCorp FTA channels in this case.
Many people regret to sign up for the Starhub TV+ Pass and want to switch to SingTel TV.
Just wondering what is your issue with Singtel TV?