I'm having trouble doing a USB slideshow on my 37PFL9606K/02. I saved 10 JPGs (1080 px high, sRGB, no embedded profile) on an otherwise empty USB stick (8GB) with names "001.jpg", "002.jpg", etc. On plugging in to the USB socket on the back of the set, the files are read OK with the images correctly displayed, but in the wrong sequence in the "playlist". I failed to discover what determines the display sequence ... whether numeric only, alphanumeric, case-sensitive, max namelength, by "date-picture-taken". Occasionally it's OK but most times it's not. If filenames are changed on the USB stick, it certainly screws up. A slideshow is no use if you can't control the sequence! Can anyone help?