We have 4 boxes in our house, 3 v6's and 1 TiVo. We were told when the v6's came out that we were unable to upgrade all our boxes to V6 as one was required to remain a TiVo. This TiVo box is now so slow it's almost unusable and we would like to upgrade to another V6. Does anybody know if that's possible, or do we still need a TiVo box as that's the box that came with our subscription when we joined? We have Broadband, TV and phone as a package, and as I said before, already have 3 v6's installed and working in the house.