Samsung BP59 - 00048 Remote Control - Genuine OEM - Tested/Works! Fast FREE SHIP! There are small magic marker "marks" above/below the source button. I have cleaned it some, but a little bit of the marking still remains. Numbers inside battery compartment, on lid/cover. SN. 04. 10. 09 Customer Service is our top priority! lot3 If you are not satisfied with your purchase for any reason, please do not hesitate to reach out to us. We will work with you in an attempt to correct the issue! NOTE! We make every effort to ship on the "SAME DAY" that you make your purchase except for Sundays, when the shipping carriers are not open. Thanks so much for your support of our store!