Game of Thrones spoofs are often the funniest because the subject matter of the show is so foreign to the modern world. When combined with something a little bit more contemporary, hilarity often ensues, which is the case with this Law & Order mash-up. In this mash-up we see Tyrion Lannister on trial for crimes committed in the frame of the classic police drama.
Law & Order is one of those shows that you just recognize right of the bat -- from the iconic music, to the gritty street style of the procession. In the same way, Game of Thrones is carving out its own niche as that same kind of show, so seeing them paired up together is a match made in heaven. Ice T also reprises his role as well.