As Dave noted repeatedly, an amazing amount of engineering in there and getting it all in that form factor. The only sad part being that those names mentioned, Sony, Sharp, and Mitsubishi hardly stand for the level of quality they used to. Not that they're the only ones. You really can't go by brand names anymore, you really have to do a lot of research to try and get a quality product these days. Thank goodness for forums like this and all the other resources available online, and the people that do the serious legwork to determine the origin of products and do real quality testing. Electronics, tools, appliances, you name it...somebody out here in cyberspace is taking the time and effort to help consumers make better choices.
AvE pointed out a major issue in all this in one of his recent videos. When people make uneducated buying choices, especially based on price, what they are doing is forcing quality products off the shelves. Lowes is a good example of a big box that used to have a selection of tools that spanned the range from el-cheapo to good quality. But over time, all the quality tools have been phased out in favor of el-cheapo products that sell the most and provide the most profit for Lowes. And it's easy to blame the big box stores, but the responsibility resides with the consumer. As long as people provide a market for el-cheapo crap, that's what will dominate the marketplace.
The average homeowner just goes into a big box store, finds what they need at the cheapest price, and goes their way. And then they likely turn around and complain about jobs being shipped overseas, not realizing that it's their purchasing choices that drive this. I personally spend hours researching a product before I ever make a purchase, but I think most people are typically in a hurry and have little time to or money to spare and so the cycle continues.