Not very helpful but mine is doing the same - rebooted it yesterday and there was new software but no guide. I called the support who said it may take an hour so I left it overnight. Today it just rebooted a couple of times but now just shows 'getting started' message. VM engineer booked for tomorrow.
Sorry to hear you're experiencing issues with your TiVo® box and a warm welcome to the community.
I have been able to locate your account and I see you have two TiVo® boxes in the property, is this happening with just the one?
If the TiVo® is still crashing then I would like to book a technician for you otherwise for missing program listings I would advise connecting to the network, you can do this by going to -
Home - Help & Settings - Settings - Network - Connect to the Virgin Media Service Now.
When you go to this screen you will see it progress through different stages, the whole process can take up to an hour so feel free to press the TV button at the top right of your remote to go back to watching TV and the TiVo® will carry on with the forced connection in the background.
Please let me know how you get on and if you would like a technician.