I had fond memories watching reruns of this as a child and I caught a couple episodes at 2:00 AM when working a graveyard shift a few years ago. It seemed funny and inoffensive so I decided to watch the series through.
Wow is this show racist! I don't mean standards-of-the-day racist. I watch a lot of old-timey sitcoms and this one is unusual. Mchale's Navy used a racial slur almost every single episode, and still managed to be a lot less racist than this. Even Love Thy Neighbour had a faint pretence of give and take. This is mocking and smug, like one of those cartoons from the 30s. It's a shame, because the non-race episode are often pretty good, but there's a certain point where I just can't enjoy it knowing what kind of people are behind it.