I´ve a problem like you. I bought a LG 24MT49S-PZ with WebOs 3.5 and the problem is than in any countries (for example UK) the TV has PiP but in others like Spain it hasn´t. I asked LG and they told me that in England the TV has another software tha permit the PiP function so It´s possible to change the software of the TV for another country software?.
Thanks in advance.