Check out the software for the Samsung Digital "Frame" TV before buying. As I recall, I looked at this product in November or December. At the time, it displayed one image at a time, with no slideshow feature. You had to go in each time you wanted to change the image and change it. I was surprised about that, but did an online search, and found that others had discovered this after purchasing the device (or as was true for me, it was a deal killer).
Samsung may have changed the software or this product may be different than the one I considered.