Earlier in 2012, top TV manufacturers such as Samsung and LG announced plans to launch 55-inch televisions featuring organic light-emitting diode (OLED) displays by the end of the year. Super-slim OLED TVs feature vivid colors, deep blacks and superior clarity and contrast compared to today's LCD and plasma sets. But it appears that Samsung and LG may be reconsidering their plans for OLED TVs, which reportedly are proving expensive and difficult to manufacturer, Digital Trends reports. So rather than build $8,000-and-up OLED TVs that few people can afford, manufacturers may switch to 4K sets, which will have nearly four times the resolution of today's 1080p TVs. The big question: Are consumers ready for 4K TV? Their home broadband (with data caps) probably isn't.