John Landis claims he originally had the movie idea as a fifteen year old, in 1965, but the film has never actually been made. He has said that he purposely referenced his unmade film, "See You Next Wednesday" several times in his feature films. We have listed the references we've found so far below.

The phrase was said several times in his first film, Shlock (1971) .
It was the film that was playing in the theatre that Michael Jackson and Ola Ray were leaving at the start of the Thriller music video (1983).

It was the supposed porn film playing in the theatre scene in An American Werewolf in London (1981).

In The Twilight Zone Movie, it was said, in German, by some soldiers in the Vic Morrow WW 2 scene, on the same film, the "scared American G.I.'s" were scared because they had killed Lieutenant Neidermeyer. Animal House (1978) fans will recall that we found out that Doug Neidermeyer was "killed in Vietnam by his own troops" in the closing credits.
I love it when a story comes full circle.

It was seen several times as a subway poster, including Coming To America (1988), and Trading Places. It was also seen as a poster in Jamie Lee Curtis's apartment in Trading Places (1983) .

Speaking of Jamie Lee, she was actually mentioned in the Coming To America SYNW subway poster, while starring in the film!
Also found in the Landis film, Spies Like Us. Poster on the wall near the beginning when Chase and Akroyd go to the Army office.
It was also a feature-within-a-feaure in The Kentucky Fried Movie (1977).
RCHAPM reports... I was watching a rerun of an episode of Scrubs last night where this phrase occurs.
It is the episode where JD, Dr. Cox, the resident and Dr. Kelso go golfing. Cox sinks a putt to win the game, and utters the phrase as he leaves the green.

On the musical side, The Girl From Ipanema is a favorite of Mr. Landis.

Mr. Landis used the song twice in The Blues Brothers. It was played in the driving-through-the-mall scene as well as the elevator music while the brothers were going up to pay the tax bill for the school.
It is also played, blaringly loud, in an elevator in Amazon Women on the Moon (1987).

Hugh Grant says "See You Next Wednesday" quite pointedly as he ushers somebody into a car, in the movie "About A Boy" -- JHoldsworth

SYNW is also in the new foreign flick, Amelie. It is in the middle of the movie (after the guy leaves his job at the fun house....) I think they had to have put it in there as a joke b/c it is clearly an unnecessary scene.
See you next wednesday,
Lisa

From a video game...

From: ClassicMovies.pcx3345:ABS
To: Paul Denton//NYCNET.33.34.4346
Subject: Account Verification

Mr. Denton:

We've recieved your order for "Blue Harvest" and "See You Next
Wednesday." At your earliest possible convenience, please
remit c110 at which point they will be shipped immediately.

Thanks for your business,
Marcy Plaigrond
Vibrant Videos, Inc.

This is just one of the MANY, MANY references in the game. I'm glad I figured this one out :P
I'm working backwards; I have
the references but I don't know where they came from. I dunno where Blue Harvest came from. Any ideas?

--Dan H

Hey Dan...

"Blue Harvest" was the code name while filming "Return of the Jedi".
This was to keep "Jedi" secret.
The conspiracy seems much larger than we originally thought.
You have an interesting discovery here.
Is your life insurance paid up to date?

"Marcy Playground" is a rock band, best known for a song called "Sex and Candy".
I bought & watched the Simpsons 1st and 2nd season DVD sets. No SYNW references were found.

-Trivia Guy