One input source must be the tuner, and the other can be a component, HDMI or otherinput.
I juat purchased the ln40b750 and I really like it so far. I am wondering how to use the picture in picture it gives me two sources to choose from cable and air. But when I choose cable it just displays static. How can I get it to display my hd cable is there a way to prgram it (I realize that they have to be different sources). I am using a component connection.