NBC promoted "The Muffin Tops" as Seinfeld's 150th episode. It is clearly the 154th, unless you dismiss "Highlights of a Hundred", which leaves you at 153. Even if you count the 1-hour episodes as one, then you're down to 147 or 148, still wrong.
Is NBC going by production order?? If so, who cares about the 150th produced vs. aired? Anyone know or care??