Replacing a 2007 27 inch LCD TV with this 55 inch Sony 4K TV. You can imagine the difference...amazing picture and sound in comparison. Easy to setup. Instant home theater. So far very pleased- BluRay disks rock (Watching the Batman The Dark Knight is a wonder). Also, many choices for 4K content on Netflix (ex. Stranger Things) and Youtube...expect content will continue to increase. Solid value.