When L is monitoring the Yagami's household with cameras and mics in Death Note, Light has no direct access to the news.
In order to continue killing criminals who are shown in the news, Light hides and uses a portable TV inside the chips packet.
How was he able to hide the TV inside the packet without L or the monitoring team noticing the same?
EDIT: The question is not about how the TV was able to fit in the packet. I want to know how Light was able to put the TV in the packet without anyone noticing that he is, in fact, putting a TV inside the chips packet.