What's with all the bitchy sitcom wives / idiot husbands?

[UATrewqaz]

When was the last time you saw a sitcom where the wife was portrayed as a loving, caring type?

Likewise every husband is some bumbling, dullard who's constantly goofing around/messing up.

Every single sitcom I can remember for that last decade has followed this pretty tired format.

How has this evolved to be what people want to watch? Most married couples I know are nothing like this... believe it or not the husband is the logical/steady one and the wife doesn't constantly bitch at him.