Netgear's Universal Wi-Fi Internet adapter is a gift from the gods
This device is a lot like power line adapters, which utilizes a device’s Ethernet port to send and receive bits and bytes sent over power lines. But the Universal Wi-Fi Internet Adapter uses Wi-Fi instead. This means that the adapter should work without drivers or installation on any device with an Ethernet port, being an AV receiver, Blu-ray player, or game system. It can also leek power off an USB port if there’s one available.
It will be a tad pricey at $80 when it’s available in May, though. For that price Mom and Pop should be able to hire the neighborhood nerd to run a cable.