Unlike most commercial frames, this digital picture frame connects to Flickr, allowing you to add and remove photos without a physical storage device, such as USB stick or SD card. A Raspberry Pi hidden inside the TV connects to the internet and automatically updates the pictures when the Flickr album is modified.
Since there are already plenty of good guides for setting up a Raspberry Pi, I won't go into the details here. I followed this instructable, and made sure that I had auto-login working (wifi doesn't work well with my network, so I ended up plugging in to ethernet since I had the power cables showing anyway). I would also recommend setting up SSH so you can access the Pi without taking apart your picture frame.