“This food is fit for a king, Here, King!”

An old joke has a husband eating a meal that was cooked by his wife. “This meal is fit for a king!” he tells his wife, then he calls the family dog. “Here, King! Come on, boy! Here, King!”
 
The joke was printed in a 1967 newspaper cartoon. American stand-up comedian Henny Youngman (1906-1998) used the joke in his act since at least the 1980s.
 
The jokes has been printed on several images.
 
 
6 November 1967, Bridgeport (CT) Post, “Ladies Day,” pg. 6, col. 4:
(Cartoon shows a husband eating his wife’s dinner, and then calling to the dog.—ed.)
“You’re right—it was a dinner fit for a king. Here, king!”
 
Google Books
May-June 1976, Scouting, pg. 46, col. 2:
(Cartoon shows a husband eating his wife’s dinner, and then calling to the dog.—ed.)
“This meal is fit for a king. Here, King!”
 
8 May 1980, Los Angeles (CA) Times, “Comedy Corner: Unknown Comic Fills Long Beach Club” by Robert J. Gore, pt. 9, pg. 4, col. 1:
“The food here is fit for a king,” he said, whistling a few times. “Here King! Here King! Here boy!”
 
28 June 1981,  Orlando (FL) Sentinel, “The Traveling Yuckster” by Cliff Yudell, Florida Magazine, pg. 6, cols. 2-3:
“Say, this food is fit for a king.” He (Henny Youngman—ed.) snaps his finger in the aisle, as if calling a dog. “Here. King! Here. King!”
 
Google Books
Take My Life, Please!
By Henny Youngman with Neal Karlen
Thorndike, ME: Thorndike Press
1992
Pg. 129:
In reply, I simply said, “Madam, the food at the Swan Lake Inn is fit for a king. Here, King! Here, King!”
 
Google Books
Let’s Eat Grandpa Or English Made Easy
By Laurie E. Rozakis
Lulu Publishing (Lulu.com)
2011
Pg. 40:
The food on the plane was fit [for] a king. “Here, King!”
   
Twitter
Brendon Walsh PhD‏
@brendonwalsh
“My wife just made a meal fit for a king!”
(whistles, snaps fingers, mimics calling dog)
“Here, King! Here, King!”
10:06 PM - 9 Sep 2016
 
Twitter
Cod‏
@BillCodd
@jimmyfallonAt dinner, Dad would say “this meal is fit for a king” then whistle and say “here king” they divorced when I was 10#MarchDadness
5:22 PM - 15 Mar 2017