I like their radio show that they've animated and air now but have yet to see idiot abroad. I'm often astounded by the things carl says and how he just doesn't seem to realize Ricky is making a fool of him the entire time.
I watched one or two episodes, and it was decently funny. Basically your average "the rest of the world sucks because they don't speak English and serve bangers and mash"-kinda idiot being sent to somewhere other than Ibiza.
My favorite part was when the moron tried to haggle with an Egyptian merchant for a small Sphinx statue. Karl wanted half off because the nose was broken on the statue.