Varney's best-known character is Ernest P. Worrell, who would address the camera as if speaking to a friend, using his trademarked catchphrase "KnoWhutImean, Vern?" In 1980, the first commercial featuring the character advertised an appearance by the Dallas Cowboys Cheerleaders at Beech Bend Park, an amusement park located near Bowling Green, Kentucky. The character was franchised for use in markets all over the country and was often used by dairies to advertise milk products. For example, the dairy bar and hamburger chain Braum's ran several advertisements featuring Ernest; Purity Dairies, based in Nashville, Pine State Dairy in Raleigh, North Carolina, and Oakhurst Dairy in Maine ran commercials that were nearly identical, but with the dairy name changed.