Mike Rowe tackles - or valiantly tries to - jobs that most of us have never heard of and would never do...and certainly would never volunteer for. 
Mike does. God bless him.
One of the all-time favorites. 

The best-ever television show of it's kind. It is the only television show of it's kind...
There have been some more recent series produced that used the same name, but this one is light years better than any of those.
If you haven't ever watched any of these episodes, perhaps you have been living in "the twilight zone".