Anyali

Hi, I have a new TV 55UH850V with WebOS 3.0, look that the TV have 4 pictures on the internal memory (dog, flower...), any way to delete this pictures? Any way to replace them with 4 of my picture? This picture are scrolling when they are no signal, will have a preference to see my picture if possible. I can select them but don't see any trash on top of screen to delete. Thanks for any help Michael