so i got a tivo 540040 which i gather is ll generation and i need a remote. looked on ebay and cheapest is a ll generation direct tv peanut. i just want to know if that will work fully!? i also noticed they sell remotes using the SPCA # and this particular remote has diff # than the original 1's!? 00006-001 where original is 00031-001 thus my doubt confusion.