What is the fine-grained topic of the following text: The 65-inch 4K TV has a resolution of 3840 x 2160 and manufacturer TP Vision includes its Ultra Pixel HD Engine along with its own upscaling technology - Ultra Resolution - to ensure that the set is as proficient with 1080p Full HD content as it is with native UHD images. Only return the topic.
65-inch 4K TV's resolution and technology features