It was an engineer install because the router was in another room (although I could have done it myself as I have a 15m ethernet cable running from the router to a 8 port switch box at the rear of the television and this connects to the Tivo box (among other things)).
The box is lightening quick compared to the old box, and although it is early days yet, I am pleased with the box. Couldn't see myself going back to the old slow Tivo box now.