@shayn42 - In order to take advantage of the lifetime warranty, you will need to have the item number at the very least and preferably the paperwork stating that the item is covered by the warranty; I don't believe every CE item is covered, and I'm fairly sure that in the early years, many pieces did not have a lifetime warranty. In addition, as has been noted, if the item is no longer made and cannot be directly replaced, you may be out of luck, as there is no way for anyone to fulfill the warranty.
All that said, I have successfully replaced/exchanged pots and pans covered by the warranty over the past few years, so it certainly is possible to do so. If you decide to call QVC customer service to ask for help, you may get a representative who doesn't know how to assist you—if that happens, see if the person can give you a direct number for the CE customer service team. Alternately, you could try reaching out to the moderators of these forums to see if they can help: QVCSocialTeam@qvc.com