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One player competes in this show. The player must run a board of 70 spaces in fifteen chances to acquire one of seven keys that will open a lock containing valuable prizes.
The contestant controls the board with a three-button device corresponding to three slowly revolving wheels: "Steps," "Bonus" and "Penalty." The category to which the board refers is disclosed and the contestant presses the "Steps" button. The wheel shows how many spaces from 1 to 10 the board progresses, as it shows a visual clue based on the category. Correct answers permit pressing the steps button again. If a player lands on a "Penalty" space, he/she must press the "Penalty" button and go back the number of spaces indicated. If it's a question space already played, then the player merely repeats the answer and presses "Steps" again. Landing on a "Bonus" space permits pressing the "Bonus" button and progressing the number of spaces indicated. A "Safety" space means no chances are lost. An incorrect answer means the player has to go back to the first space on that line of spaces.
If the player completes the board within the 15 chances, he/she selects a key and may stop or play on. Winning all seven keys wins all the prizes automatically. If the player fails to complete the board within 15 chances, the game ends and he/she must forfeit any keys acquired.
A home viewer contest was used. Here, viewers sent in postcards with their selection of a numbered key that will open one of ten doors of prizes, one of which is a big prize. A name is drawn and whatever key that viewer has selected wins the prize that key opens.
The theme song for Seven Keys was the Broadway tune "Everything's Coming Up Roses."
At a Glance: Additional information about the series
One episode is available on a compilation DVD from Shokus Video.