Bob Griese (who was not in the booth with Enberg and Olsen), garnered the third highest Nielsen rating of any Super Bowl to date at 48.3, but it ended up being the first Super Bowl to garner over 90 million viewers, the highest ever at that time. While Dick Enberg, Merlin Olsen and Bob Griese called the game, Bob Costas and his NFL '85 castmates, Ahmad Rashad and Pete Axthelm anchored the pregame, halftime and postgame coverage. Other contributors included Charlie Jones (recapping Super Bowl I), Larry King (interviewing Mike Ditka and Raymond Berry), and Bill Macatee (profiling Patriots owner Billy Sullivan and his family). The pregame coverage also included a skit featuring comedian Rodney Dangerfield, an interview by NBC Nightly News anchor Tom Brokaw of United States President Ronald Reagan at the White House (this would not become a regular Super Bowl pregame feature until Super Bowl XLIII, when Today show host Matt Lauer interviewed U.S. President Barack Obama) and a concept devised by then-NBC Sports executive Michael Weisman which became known as the "Silent Minute," a one-minute countdown featuring a black screen with a digital clock which morphed into Roman numerals when it reached twenty seconds remaining and accompanied by Leroy Anderson's "The Syncopated Clock." The Last Precinct debuted on NBC after the game. Super Bowl XX was simulcast in Canada on CTV and also broadcast on Channel 4 in the United Kingdom, and Canal 5 in Mexico, with play-by-play announcers Toño de Valdés, Enrique Burak and color commentator Pepe Segarra. Super Bowl XX is featured on NFL's Greatest Games under the title Super Bears with narration by Don LaFontaine. The national radio broadcast was aired by NBC Radio, which outbid CBS Radio for the nationwide NFL contract in March 1985. Don Criqui was the play-by-play announcer, with Bob Trumpy as the color analyst. WGN-AM carried the game in the Chicago area (and thanks to WGN's 50,000-watt clear-channel signal, to much of the continental United States), with Wayne Larrivee on play-by-play, and Jim Hart and Dick Butkus providing commentary. WEEI carried the game in the Boston area, with John Carlson and Jon Morris on the call. Entertainment This was the first year that the NFL itself implemented the pregame entertainment. The pregame entertainment show began after the players left the field and ended with kick-off. Lesslee Fitzmorris created and directed the show. To celebrate the 20th Super Bowl