With a single father and a Mary Poppins-like nanny, how could you go wrong? Nanny brought her psychic brand of magic to families all over the country. There was even a bit of a musical jingling sound each time Nannie's psychic powers were at work.
Got partway, don't plan to finish for some reason. Either the quality dropped (The Simpsons), or I really wanted to love them but they just didn't click for me (Buffy), or what I saw was interesting, but not enough to invest time in the whole thing (The Borgias).