After running uniq on this file the output is unchanged.
"Celebrity Countdown" (1998) mathematics
"Celebrity Countdown" (1998) mathematics
"Celebrity Countdown" (1998) non-fiction
"Celebrity Countdown" (1998) non-fiction
"Celebrity Countdown" (1998) quiz-show
"Celebrity Countdown" (1998) quiz-show
"Celebrity Countdown" (1998) word-game
"Celebrity Countdown" (1998) word-game