No problem, TiVo & V6 boxes both run TiVo software but have very different internet connectivity. I've moved your post.
You've not answered my question on whether the problem you've posted about is with the TV Control app or your V6 box, but I will presume it's your TV box.
If OnDemand works, then your internet connection is working - so it's just your guide updates that are missing. Follow Home > Help & Settings > Settings > Network > Connect to VM services now - wait perhaps 30minutes and recheck that your onscreen TV guide has correctly populated.
If this isn't the problem, or this doesn't resolve the problem - then reply with as many specifics/as much info as you can muster. On fora such as these, it's rarely possible to give too much info, but you can easily give too little to enable others to help.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks