I have one of these boxes from Time Warner Cable in Berlin, NH.
I can't seem to make PIP work. I can get a PIP, but it is always the same channel as the main picture. I use HDMI for PIP, and YPbPr1 for the main picture, though switching them seems to make no difference to this issue.
How can I get the channel to be different in the PIP?
BTW, The TV is a Westinghouse LTV32-w6 HD.