The single redeeming moment from a classically bad 1980s sitcom

I've never heard of the 1980's sitcom Day by Day, but from what I can tell, it was undeniably stupid.

But it is also apparently well known for one episode that spoofed The Brady Bunch and included all the principle characters from the 1970's sitcom except for Greg Brady. 

It took me five days to watch the whole thing (I have the attention span of a gnat when it comes to online video), but I have to admit that I was slightly mesmerized watching the Brady family making fun of themselves.