They really wanted to Madison…
I had the opposite reaction. That episode (not so much a WTF moment but an episode-long death spiral) put me off of medical dramas completely. Haven’t watched one since.
It’s hard to overstate the disconnect between generations at that time, and the most jaw dropping attempt by studio execs and established performers to ‘package something for the kids’ could be its own thread. But here’s my contribution.
Liberace and the Young Folk perform ‘Feelin’ Groovy’ (The Red Skelton Hour 1968) (youtube.com)
You know those times you wish the video was presented in higher definition?
This ain’t one of those times.
I did NOT expect this:
The only scene more shocking than that one was the scene where we find out that Joan once had a thing with Paul.
Rocky Horror fans are like Star Trek and Star Wars fans: you do not screw around with what they see as theirs.
I’m an RHPS fan, been to the movie many times, danced the “Time Warp” in the aisles, brought my lighter and my confetti and my water pistol and my toast, and know all the audience responses (“Slut!” “Asshole!” “Say it!” etc.). I made it through thirty seconds of that Donny and Marie presentation before I had to shut it down. That’s not the “Time Warp”; that’s an abomination of the “Time Warp.”
Jeez, imagine the outcry if Donny and Marie had done “You got Tribbles/Right here on the bridge deck/With a capital T and that rhymes with ‘See!/Me here on Star Trek!’”
I remember that episode of Hill Street Blues, but don’t have a clue what happened on Battlestar Galactica, Lost, or most of the others mentioned in this thread.
What the producers did was order the ending of the pilot changed after it was shown to preview audiences who indicated they didn’t like it. They didn’t want either Andy Renko or Bobby Hill to be killed, so Esterhause’s line to Furillo went from “One in serious condition, one DOA” to “Two in serious condition.”
The pilot then went on to be the first episode of the series.
OMG, that clip is worse than when Batman put a flower decal on the Batmobile! 
Count Floyd on SCTV is a better vampire than Donny Osmond. 
Who is the old guy in that clip anyway?
Dick Clark.
I did think it was a nice touch when Marie used a helium balloon to do Little Nell’s lines.
Did they have a warning about not breathing helium?
I don’t think she had any idea it was done any other way.
Same, I just couldn’t take it.
What was worser-the dancing, or the costumes?
BTW, “yes” answers understood, but not accepted. 
I knew that clip wasn’t how I remembered it. Here’s the original broadcast with Lawrence Welk introducing the duo
It starts later than I would like, but half the youtube results were with the other guy
Anything in “Xavier: Renegade Angel”.