What year did the TV show "Gunsmoke" change its length from 30 minutes to 1 hour?

More Questions:

What do you get when you mix bourbon, mint and sugar?

What does the abbreviation CSS stand for?

What media personality was once a speechwriter for Richard Nixon?

What does a "screever" do on a sidewalk?

How many labours did Hercules perform to free himself from bondage?

What is the more common name for Epidermis?

What is the more common name for the hormone epinephrine?

What vitamin was isolated from fish liver oil in 1917?

What year was actor Anthony Hopkins born?

What famous horse belonged to Alexander the Great?

What Harvard dropout held 535 US patents upon his death in 1991, second only to Thomas Edison?

Which famed hunter, scout, and showman of the Old West nicknamed his rifle "Lucretia Borgia"?

Whose 1923 death made Calvin Coolidge US president?

The dragonfly has six legs but rarely does what?

What character first appeared in the film "The Wise Little Hen"?