TV
"Plunk your magic twanger, Froggy."
I first read this in the underground comic, “Uncle Joe’s Commie Book featuring Cutey Bunny”, ,but it is really from “Smilin’ Ed and His Buster Brown Gang”, later know as “Andy’s Gang”
"Hey, kids! What time is it?""
**It’s Howdy Doody time! **
My pop has a copy of the last episode.
Maxwell Smart from Get Smart
Mission: Impossible, the guy on the taopes
I think this is Daffy Duck
The opening narration of The Outer Limits
Ooh! Good one! The Demolished Man, by Alfred Bester. Killer book.
Hardware Wars
Walter Brennan in To Have and Have Not
“is in the vessel with the pestle. The chalice from the palace has the brew that is true.” Court Jester
Gene Kelley, Singing in the Rain. Before a flashback on his baggy pants pratfall vaudeville days.
Aw c’mon, give us a hard one. Bogie in Casablanca
Uh…ya got me.
Alan Arkin in The Russians are Coming
I love how no one has gotten this one yet!
Cartoons:
“Yippee skippy!”
More sitcom:
“Good day. I say good day!”
Y’know, a lot of the statements given so far aren’t catchphrases. Quotes, but not catchphrases.
And I see that nobody’s responded to my “I’ll be superamalgamated!” yet. Any takers?
I’m sure I’m wrong, but just for fun: Kaiser Wilheim?
Obscure (movies):
“Thrill me.”
“Just mowing the lawn, dear.”
Tootie, The Facts of Life
Benjamin J. Grimm
Scott Cranford of Nashville.
But I cheated. 
“Bub.”
“Giggity-giggity!”
“The power is yours!”
Quagmire on Family Guy
A tough one:
“Marcello!”
Actually, no. I don’t know who that person is, but he was just ripping off someone else’s catchphrase.
Please tell me you didn’t just bust out with a Captain Planet quote.
Captain Planet from “Captain Planet and the Planeteers”
Fez from “That '70’s Show”.
Oh! It’s from the short-lived Zelda animated show. I’ve only ever seen the first episode, but Link said it about 5 times in one 18 minute episode.
Oh, I busted. And i can bust out with more:
“By your powers combined”
“Let our powers combine”
Hmm…seeems to be a theme building here…
“You’ll pay for this, Captain Planet!”