I have 3 Tivo's series 3 with Fios TV now previously Cox. When i was with Cox 1 dual stream cable was required for each unit. Cox at the time charged $1.99 a month for each of the cable cards. I am now with Fios and I have the same set up using Verizon's Fios at $3.98 per card and have no problems. I have no need for pay per view. I have also purchased lifetime service for the Tivo's's. I have owned a total of 7 Tivo's and since 1998 i have only had one hard drive failure. I contacted weaknees.com and they shipped me a new one I popped that series 2 open swapped it out. I can also say that these old series 2 boxes are still working. I have gifted them to family members as X-mas gift's so in my opinion its worth shelling out the cash for a Tivo's up front and would recommend it to any one who asked me.