I recently bought 3 Tivo premiers to replace my Fios boxes. I haven't registered anything yet nor have I called Verizon. I plan on buying lifetime access for all 3 boxes. Where to start and step by step instruction to complete process would be helpful. Any pitfalls with Verizon to watch out for? Total time to completion in your experience and current cost for Verizon tuner cards ( I have heard various charges, no consistency). Thanks in advance.