"The Maury Povich Show" can be considered quite odd, even for a talk show. While it isn't as down-and-out sleazy and exploitive as many other talk shows, it is by no means wholesome entertainment. For example have B&W reenactments (ooh, arty!) of people naked and/or having sex that can't be there for any other reason than to titilate, since the guests and/or Maury could EASILY just SAY what happened with just a few words!
Of course, the topics that are chosen for the show can be considered exploitation. Even when it's about a real and serious problem (overweight babies), it comes off as exploitive. For example, whenever they do overweight toddlers, they are almost always brought into the show just in a diaper to emphasize their weight. The "I have a secret" episodes (which almost all the guests are there to confess to a loved one they cheated on him/her), even though they give guests a way to reveal their secret, still get you irked that Maury is showing, in front of millions, hearts being ripped apart.
And then, of course, we have the paternity tests. OVER AND OVER AND OVER! It seems like every other episode focuses on paternity tests! As others have pointed out, there seems to be an anti-male vibe to these particular episodes (as well as some other non-paternity episodes), with the men made to look like scum whether they are the fathers or not. In fairness, some men right from the start come off as decent (and the audience does show their approval to them), and the men who insult the women certainly aren't being forced to do so. Still, you sense a lot of bias. For one thing, during the lie detector shows, how come it's ALWAYS the MAN who is accused of cheating and is being tested - why doesn't Maury ever do any shows when it's the WOMAN who is being accused of cheating by the man?
What really makes the show odd, however, is the way Maury reacts to what he covers. We see him comforting upset guests, he offers various kinds of help to his guests, he tells rude guests they can't act that way, and he regards just about everything with utter seriousness. The way he acts is indeed warm and likable, but you cannot tell if Maury REALLY cares for his audience or not (unlikely, give this IS a talk show!) In fact, I would say that this attitude of Maury's - phony or not - is probably one of the big reasons for its success and long run.