Hi I have a current directv receiver box as of this year . I think the model is D-12 . I am presently unable to change the channels for when the box switches channels . I need the codes for my replay tv dvr box to control my replay tv box model 5060 . I tried all of the codes that where in the menu for directv and none of them seam to work . Maybe I placed the IR Blaster in the wrong spot . I placed it over the infrared sensor for the new directv box , so I think I have it right . I also Have no serial connection on this box too . I know that most of the boxes from replay have ir blaster and serial to control the channel switching . So if someone out there can help me solve this problem It would be of great help from you . Thank You.