Hi chrisn5942
The Sky Sports+ channel is a direct replacement for Sky Sports Arena which is on channel 508. This channel will stream additional Championship and Football League games via the red button, but those additonal red button games on Sky Sports + will only be available on Virgin TV 360 and Stream boxes at launch.
There is an existing red button functionality on the older tivo and V6 boxes with reduced functionality, that will continue to be available but they wont have the full amount of red button streams available to customers with Sky Sports+. The Sky Sports + multiscreen is being developed for V6, but there's no timescale for it, and it will never be available on the older tivo box.
You will though be able to watch the additional red button games on a tablet or mobile phone using the Sky Sports app.