Rep I spoke to knew about the free lifetime transfer for grandfathered TiVos (she didn't need me to give her the code), but said it doesn't apply to the TiVoHD (at least for now).
ZeoTiVo said:look in one of the faqs stickied at the top of this forum. there is some number you need to give the rep to look up the grandfathered transfer. the post will also outline any conditions. You need to give them that number so they understand the deal or luck into one that has done some and remembers it