We noticed a problem on a particular screen and took a quick snapshot of it- hence the bad quality. But if you look closely you’ll notice the error. Can you see it?
If you look closely you’ll notice scroll bars on the screen located on the left hand side. The content that was being played was a video and the player that was actually used was realplayer.
Here’s a picture of where the scroll bars was located:
So really, my guess is that the device connected to these screens was a PC with generic and standard software installed. For some retail stores, this setup is pretty common as it all comes down to budget and costings.