Microwave oven
In 1947, Raytheon built the "Radarange", the first commercially available microwave oven. It was almost tall, weighed and cost about US$5,000 ($ in dollars) each. It consumed 3 kilowatts, about three times as much as today's microwave ovens, and was water-cooled. The name was the winning entry in an employee contest. An early Radarange was installed (and remains) in the galley of the nuclear-powered passenger/cargo ship NS "Savannah". An early commercial model introduced in 1954 consumed 1.6 kilowatts and sold for US$2,000 to US$3,000 ($ to $ in dollars). Raytheon licensed its technology to the Tappan Stove company of Mansfield, Ohio in 1952. They tried to market a large 220 volt wall unit as a home microwave oven in 1955 for a price of US$1,295 ($ in dollars), but it did not sell well.
TV dinner
Several smaller companies had conceived of frozen dinners earlier (see Invention section below), but the first to achieve success was Swanson. The first Swanson-brand TV Dinner was produced in the United States and consisted of a Thanksgiving meal of turkey, cornbread dressing, frozen peas and sweet potatoes packaged in a tray like those used at the time for airline food service. Each item was placed in its own compartment. The trays proved to be useful: the entire dinner could be removed from the outer packaging as a unit, the tray with its aluminum foil covering could be heated directly in the oven without any extra dishes, and one could eat the meal directly from the tray. The product was cooked for 25 minutes at and fit nicely on a TV tray table. The original TV Dinner sold for 98 cents, and had a production estimate of 5,000 dinners for the first year.