TV Go can be accessed on a laptop here -
https://virgintvgo.virginmedia.com/en.html - you can manage your Tivo from the link on that home page once you've logged in, although I haven't tried to schedule new recordings from there but you can check My Shows and Planned Recordings . Having said that, it's not letting me do that at the moment but it did the other night. I seem to recall that it used to be more easily accessible via the Virgin Media site but I guess that changed when they re-vamped the apps.