The Englewood Cliffs, NJ-based CNBC is spending big bucks renting studio space in Midtown in order to set up its "Squawk Box" studio just two blocks north of the Fox Business headquarters on the Avenue of the Americas. Competition is so tough, top business executives tell us, that CNBC is stepping up its haranguing of guests about appearing on any parts of the Fox Business lineup and has threatened these executives with banishment from CNBC if they appear on Fox first.