Anything that starts out, “Would you believe…” I would attribute to Get Smart.
~VOW
I find that very difficult to believe.
Maxwell Smart had been off the air for nine weeks.
Yeah, I know that wasn’t from Get Smart. But I can’t resist someone saying, ‘Would you believe…?’
I was replying to VOW. 
From the same episode:
“We’ll have to leave Simone in the bus 'til we can get her shampooed.”
Correct, of course. Ever seen it? Political satire in those days was vicious.
Pork chopshhhhh…
And apple sauceshhhhhh…
…and that crazy dude used to enjoy going to museums, particularly the one at 1071 Fifth Avenue, New York, NY. 
Ain’t that swell!
(Brady Bunch)
Doc, P.T., Bugs, and Doomsday.
Yep!
Hint: the bus was a mobile Mondrian panting.
The Kids From C.A.P.E.R.
Mushmouth, Dumb Donald and Weird Harold.
Fat Albert.
“Oooh, oooh, I’m hip, I’m hip!”
[SPOILER]My first thought is The Flintstones (specifically, the episode where Fred portrays superhero “Superstone”), but I thought it was, “Yeah, Yeah, I’m hip, I’m hip!”
“Oooh, oooh” sounds like Arnold from Welcome Back, Kotter[/SPOILER]
That’s the player who’ll stand up and yell…
(This one might be tough, as they changed this rather early in the show’s run)
You were right the first time…I misquoted
o/ "Hooray, hurrah, we're glad everybody's here, c'mon let's give a cheer..." o/
~VOW
Partridge Family?
Right!