I am a bit confused that there are different models, but they cannot be compared directly because many details are not given for one model. With the 50" there are three models, they are differently priced and funnily enough the used one is the most expensive, although I can't see any difference. In addition, many responses and reviews report that the Samsung menu and the remote control are not comfortable. We actually watch via Apple Box and have only had its operation so far. Is that also possible with the Frame? Thank you for any information.