I have a 42" Samsung DLP HL-R4266 I also have Directv HD reciever connected with HDMI and a non HD Tivo connected with S-video. Also a PS2 connected with RCA and Xbox with S-video. I am unable to select PIP on the menu to program it. When I push the PIP button I get an error message reading not available in external input. I connected the Tivo with regular cable to see if it made a difference and the error message changed to not available in analog. Do I need to connect the tivo with componet cables to use the pip? thanks