3rd Rock from the Sun - Season 5 Episode 18
Dick and Harry Fall in a Hole

Dick and Harry fall into a large hole in the woods, which covers over when they attempt to climb out. Dick then panics, whilst Harry remains in a relaxed, zen-like state. A hole expert, named Angus The Hole McDuff is called to the scene and devises a plan to build a second hole in order to access the one Dick and Harry are stuck in; however he becomes highly offended when Sally belittles his idea.