I have four Tivo units in my home. Been slowly replacing all the Verizon HD Set Top boxes that I had. I have no more Verizon HD Set Top boxes. I am renting 4 multi-stream cards from Verizon. ....but there is still a $7.99 Rental HD Box Charge on my account. There is a conflict of explanations as to why, pending who I talk to at Verizon Fios.... One explanation is that the HD Box I mailed back was never received. The other, is that it is policy for Verizon to charge a HD Box fee for people using their HD service, even if the receiving units are Tivo boxes. Anyone know the real story here?