I'v eneve rhad my payment info lost, but everytime I register a new TiVo I need to enter a new PIN. Although I use the same one, but still it always requests for me to enter a new PIN the first time I access Amazon from a new TiVo.
Roamio Pro (5TB Red)
TiVo Mini x4
Roamio Basic(1TB Red)/Roamio Basic refurb(stock drive)
53TB unRAID2--38TB unRAID3--33TB unRAID1a