The agreements marked the first time that the same network had been awarded the rights to five consecutive Olympics.
No speed skater, man or woman, had won the 500 meters at three consecutive Olympics.
Oerter became the first track and field athlete to win the same event in four consecutive Olympics.
She won the 100-meter freestyle in three consecutive Olympics, beginning in 1956.
China won the men's team event to complete a sweep of all the table tennis gold medals for the second consecutive Olympics.
This from a woman who had won the race in two consecutive Olympics.
Clark achieved fourth place in two consecutive Olympics, 1984 and 1988.
He competed for his native country at three consecutive Olympics (1980-88).
He represented the Spanish men's national team at three consecutive Olympics, starting in 2000.
He competed at five consecutive Olympics from 1992 to 2008.