invention Time...
A gadget, likely Android, with vast storage and an HDMI output. So far, that describes some phones or tablets. They could be optimized for this application, e.g. TB SSD.
Now, install such a gadget in a car, semi permanently. I assume you can park within range of your wifi. Remote control the gadget from the house.
Quite suddenly, your car has a vast Netflix collection for the backseat kidiots.
This opens up a new market.