I often find Reality TV shows hilarious for the wrong reasons.
Take MTV Reality TV shows for example. I love how obviously staged it is, from some of the horrible one liners to the obviously staged drama's that are horribly over-exagerated.
To VH1's take on the bachelor genre. So many women just whoring themselves out for our "entertainment". New York while a stain on society, is hilarious.
Then you have Big Brother, often zzzzzzzzzzzzzzzzzzzzz, sometimes unintentionally hilarious though.
While you have those shows, there tend to be some decent shows that appear along the way. Take for instance the Contender, the Apprentice and the Amazing Race.
So in saying, while Reality TV Shows generally are sh*t, some are fairly decent.