NBC's 1989 telecast of Super Bowl XXIII between the San Francisco 49ers and Cincinnati Bengals was watched by an estimated 110,780,000 viewers, according to ACNielsen, making it the sixth most-watched program in television history. The game was Merlin Olsen's final Super Bowl broadcast, as he was demoted the following season to make room for Bill Walsh. The game featured a special segment by Frank Deford profiling recently deceased Pittsburgh Steelers owner Art Rooney. This was also the first NFL game that NBC covered with their new "Quantel Cypher" graphics system, which was introduced during their coverage of the 1988 Seoul Olympics (the network had used Chyron for their graphics prior to Super Bowl XXIII). With the win, the 49ers became the first team to win Super Bowls televised on three different networks (the other two being Super Bowl XVI on CBS and Super Bowl XIX on ABC). Since then, the Washington Redskins (in 1992), the Green Bay Packers (in 1997), the Pittsburgh Steelers (in 2006) the New York Giants (in 2008) the New England Patriots (in 2015) and the Denver Broncos (in 2016) have accomplished this same feat. This was the last outdoor Super Bowl to start earlier than 6:00 pm Eastern Time, as it started just after 5:00 pm.