On the surface, this seems like a ridiculous question. But in fact, no, you don't need to have the Theater package to play videos. You can play them on the screen in the dashboard if you are so inclined. But the car needs to be in park with the parking brake on.do you have to have the home theater package to do this?
HiYes, you can play videos from a USB stick. It works in my 2014 qx60, the format is divx. Personally, I format the videos in avi with the divx codec. If you want more details, let me know.