Tried again last night before giving up, but this time I tried a different button. Success! I used the "My DVR button" since I don't have a DVR and probably wont any time soon. For some reason I was unsuccessful on previous attempts of trying to use the TV/VCR button and the PIP On-Off button for the same macro. No matter since the My DVR button is easier hit while holding the remote. From a curiosity stand point I'm still curious why those other two keys wouldn't cooperate. I want to thank 3FG again for giving me the information needed to solve my immediate problem. 3FG, you've inspired me to learn more about these remotes. With your help I've learned that they are far more useful than the Comcast users manual indicates.