Example: In the epi where JoyAnna and Sierra are preparing a baby shower, I was curious about Sierra, who Jessa referred to as Joy's best friend*. Sierra wasn't dressed fundy, so I was curious: Where did the two meet? Couldn't've been school, as Joy is homeschooled, and besides Sierra looks older than Joy.
But instead of giving us some background, we get Joy's brothers telling us that any suitors will get "screened" by them. Big DUH. Anyone who's been following the Duggars for five minutes already knows that; it's true of all the sisters. What we're interested in is what makes the siblings individuals.
*Their interactions were quite stilted for best friends. I saw no sign of friendship there at all.
In short, if you want to follow the Duggars, don't bother watching their shows; just type "Duggar" into the search bar: You'll get news of every sneeze and fart -- more than you ever wanted -- and you won't have to support the TLC network.