- Adaptation Displacement: The Australian version and the Jim Perry version were both much more successful and better known than the first iteration (although it did run for five years).
- Most Wonderful Sound:
- The sets of tinkling bells used for the Instant Bargain and the Instant Cash round.
- The doorbell chime used to introduce the Fame Game.
- The fanfare if a Money Card was found in the Fame Game.
- Retroactive Recognition: Renae Jacobs, voice of April O'Neil in Teenage Mutant Ninja Turtles (1987), was a contestant on the daytime show in late 1985; she would briefly re-enter the game show sphere as the "Lady of the Maze" in the first season of The Family Channel's Masters Of The Maze.
- They Changed It, Now It Sucks!:
- The switch from three "single" players to two married couples on April 16, 1973, was a last-ditch grab for ratings against CBS' Gambit. The show was canned 13 weeks later, with a syndicated attempt two months later failing after one season.
- The 1980s version changed its shopping-based bonus round in October 1984 to the Winner's Board, where matches could be made for prizes (the syndicated run, which began in January 1985, used shopping until November). This was replaced in December 1987 with the Winner's Big Money Game, which involved word-based puzzles similar to those of Password Plus/Super Password.
- The Australian version made a host of gameplay tweaks (including the addition of a fourth contestant) in 2000, renaming itself Sale of the New Century. After ratings continued to slide, both the "New" and the fourth contestant were ousted in 2001 while the show switched to a widescreen format. Still didn't work.
- Also for the Australian version, when Jo Bailey left as hostess, the Australian version of The Late Show did a sketch revolving around people protesting outside Channel 9 studios to bring her back.
- What an Idiot!: Many examples, but never so much as the one that saw all three contestants not so much as even make a move for the buzzer to attempt an answer at a Fame Game question whose clues led to a banana as the answer. The question itself, as Fame Game questions typically do, began with usual difficulty, identifying this "famous thing" as an herb, grown on plants that become up to 30 feet tall. But latter clues — picked when green but allowed to ripen to yellow; often consumed "split" and with ice cream, fruits and whipped cream, and popularity with monkeys — saw the contestants continue to be completely dumbfounded. (One contestant even gasped after Perry gave the answer, "A banana?")
YMMV / Sale of the Century