To think that it started with a modest strip written & drawn by Ted Key for The Saturday Evening Post.
Hazel was adapted for television in 1961 by Screen Gems and enjoyed a pretty healthy run in syndication during the 70's. Shirley Booth starred as Hazel, the housekeeper who was, for all intents & purposes, the major domo of the Baxter household. Her boss, George Baxter (Don DeFore) could've just as easily had Hazel help him with his business, she was that good.
After the first few years, DeFore & Whitney Blake left the show, and I believe it was George's brother who moved in. Unfortunately, that also spelled the end of the series. Blake, meanwhile, is better known for having created another seminal sitcom in the 70's and early 80's---One Day At A Time.
Right now, MilkAmplifier has a montage of opens from all 5 seasons: