Have you ever watched the CBS series 'Under the Dome'? No? It's okay, because 'Late Show' host David Letterman has, and he's more than ready, willing, and able to explain the dramatic series to his audience. Letterman is hip to the real plights inside the series -- sometimes, people want to leave, but they can't, because the dome. The show is about people trapped under a dome. There's a dome, and it's over them, and it gets in their way. A dome. Dome.

Sound repetitive? Oh, just you wait. Letterman and his crew compiled a video of all the mentions of "dome" in 'Under the Dome' and well, it sounds a lot like DOMEDOMEDOMEDOMEDOME.