Oven gas stove included the AGA cooker invented in 1922 by Gustaf Dalén. The first electric ovens were invented in the very late 19th century, however, like many electrical inventions destined for commercial use, mass ownership of electrical ovens could not be a reality until better and more efficient use of electricity was available. More recently, ovens have become slightly more high-tech in terms of cooking strategy. The microwave as a cooking tool was discovered by Percy Spencer in 1946, and with the help from engineers, the microwave oven was patented. The microwave oven uses microwave radiation to excite the molecules
Inspector Gadget action bumper segment titled ""Defective Gadgetry"" had a guest appearance by Inspector Gadget, in which he came to the Mario Bros. for help in repairing him. This was his first live-action appearance predating the 1999 live-action film ten years later. Maurice LaMarche (who would assume the voice role in ""Inspector Gadget: Gadget's Greatest Gadgets"" ten years later) plays Gadget in this segment. A second live-action segment, ""Treasure of the Sierra Brooklyn"" had Gadget returning to help the Mario Bros. find a lost treasure. The "Robot Chicken" episode "Adoption's an Option" featured a sketch featuring the "Inspector Gadget" characters in a