The Simpsons (1989) : 14x15

Homer decides to try for a promotion at Springfield Nuclear Power Plant and suggests several ideas to Mr. Burns, all of which are rejected. One night, Homer overhears Burns admit that the plant's real owner is a canary to protect Burns from responsibility for any wrongdoing by the power plant. Homer releases the bird and tells Burns that nuclear inspectors have arrived for a surprise inspection. Burns, desperate to find a scapegoat, names Homer the new owner. As his first act, Homer fires Burns and takes control of the Plant. However, he finds that his work life as a CEO is conflicting with his family life. Homer decides to return to his old job and gives ownership back to Burns.