I reluctantly watched this show...and found it to be rather funny.
Mostly I do not watch shows like Colbert, Kimmel, Stewart, Oliver, or Maher. In fact, I have never seen a single Colbert or Kimmel show. I used to watch Maher, but I do not find him funny or interesting at all anymore. Same thing goes with Oliver, although I will watch a bit once in a while.
From what I have seen or hear, the right wing commentators skewer left wing politicians relentlessly. So I am not sure why they are so bothered by left wing people doing the same back at them...except for the fact that their Fuhrer does not like to be lampooned.