Question: What sportscaster covered the Epic in Miami?

full_context: Document 1: The Catch (American football): The Catch refers to the winning touchdown pass in the 1981 NFC Championship Game played between the Dallas Cowboys and San Francisco 49ers at Candlestick Park on January 10, 1982, as part of the 1981–82 NFL playoffs following the 1981 NFL season. With 58 seconds left in the game, San Francisco wide receiver Dwight Clark made a leaping grab in the back of the end zone to complete a 6-yard touchdown pass from quarterback Joe Montana, enabling the 49ers to defeat the Cowboys, 28–27. "The Catch" is widely regarded as one of the most memorable events in National Football League (NFL) history. The game represented the end of the Cowboys' domination in the NFC since the conference's inception in 1970, and the beginning of the 49ers' rise as an NFL dynasty in the 1980s.
Document 2: Bob Costas: Robert Quinlan Costas (born March 22, 1952) is an American sportscaster, on the air for NBC Sports television since the early 1980s. He was the prime-time host of 12 Olympic Games, from 1992 until 2016. Costas currently does play-by-play for MLB Network and hosts an interview show called "Studio 42 with Bob Costas".
Document 3: Greg Gumbel: Greg Gumbel (born May 3, 1946) is an American television sportscaster. He is best known for his various assignments on the CBS network (most notably, the National Football League and NCAA basketball). The older brother of news and sportscaster Bryant Gumbel, he became the first African-American (and Creole) announcer to call play-by-play of a major sports championship in the United States when he announced Super Bowl XXXV for the CBS network in 2001. He is of Creole ancestry. Gumbel is currently a play-by-play broadcaster for the "NFL on CBS" alongside Trent Green as well as the studio host for CBS' men's college basketball coverage.
Document 4: Bryant Gumbel: Bryant Charles Gumbel (born September 29, 1948) is an American television journalist and sportscaster, best known for his 15 years as co-host of NBC's "Today". He is the younger brother of sportscaster Greg Gumbel. Since 1995, he has hosted HBO's acclaimed investigative series "Real Sports with Bryant Gumbel", which has been rated as "flat out TV's best sports program" by the "Los Angeles Times". It won a Peabody Award in 2012.
Document 5: Epic in Miami: The Epic in Miami is the name given to a National Football League AFC divisional playoff game between the San Diego Chargers and Miami Dolphins that took place on January 2, 1982 in the Miami Orange Bowl. The game, won by the Chargers in overtime, 41–38, is one of the most famous in National Football League lore because of the conditions on the field, the performances of players on both teams, and the numerous records that were set. It was also referred to in the "Miami Herald" as the "Miracle That Died", while "Sports Illustrated" dubbed it the "Game No One Should Have Lost". The game aired on NBC with Don Criqui and John Brodie calling the action and Bryant Gumbel serving as the anchor.
Document 6: Gregg Murphy: Gregg Murphy is a sports journalist and was part of CN8's sports coverage. He hosted "Out of Bounds," an hour-long sports program, airing at 7 p.m. weeknights, that examines the nation's biggest sports stories.
Document 7: James Brown (sportscaster): James Brown (born February 25, 1951), commonly called "J.B.", is an American sportscaster known for being the host of "The NFL Today" on CBS Sports and "Thursday Night Football" on CBS Sports and NFL Network. He is also the Special Correspondent for CBS' news division. Also, he is best known as the former host of the FOX network's NFL pregame show, "Fox NFL Sunday" for 11 years.
Document 8: Mile High Miracle: The Mile High Miracle is the name given to both the NFL 2012 AFC Divisional playoff game between the Baltimore Ravens and Denver Broncos on January 12, 2013, and its defining play, a game-tying 70-yard touchdown pass from Baltimore quarterback Joe Flacco to receiver Jacoby Jones with under a minute left in regulation. Playing on the road against the heavily favored Broncos, who had decisively defeated the struggling Ravens late in the regular season while on an 11-game winning streak, Flacco and the Ravens forced the Peyton Manning-led Broncos into double overtime, when Justin Tucker kicked a 47-yard field goal to secure a 38–35 win. With 28 points scored in the first eleven minutes of the game, three return touchdowns, five lead changes, and single-digit temperatures, the game was described by "Sports Illustrated" as "one of the most exciting and entertaining postseason games in NFL history." The Ravens would go on to beat the New England Patriots, and two weeks later, defeat the San Francisco 49ers in Super Bowl XLVII for the franchise's second championship.
Document 9: Keith Olbermann: Keith Theodore Olbermann ( ; born January 27, 1959) is an American sports and political commentator and writer. He is currently the host of "GQ"' s political webshow "The Resistance with Keith Olbermann."
Document 10: 1982 Miami Dolphins season: The 1982 Miami Dolphins season was the team's seventeenth in the National Football League. The team was coming off an unexpected 11-4-1 1981 season and a devastating loss to the San Diego Chargers in the Divisional Round the previous season in a game dubbed the Epic in Miami. The Dolphins had clinched the 2 seed and were picked by many to reach the Super Bowl during the 1981 season. Because of the high number of picks to reach the Super Bowl the previous season, many more fans picked them to win it during the 1982 season. The Dolphins looked to improve on their 11-4-1 record from 1981. However, a players strike cancelled 7 of the team's 16 games. Because of this, the NFL schedule was shrunk to 9 games. The Dolphins started out fresh, winning their first 2 games prior to the strike. When season play resumed 2 months later, the Dolphins defeated the Buffalo Bills 9-7 in Buffalo to clinch a 3-0 start. After a loss to Tampa Bay, they defeated the Minnesota Vikings 22-14. The next week, they lost a brisk game against the Patriots 3-0 in a game called the Snowplow Game. The Dolphins would then win 3 straight games to end the season 7-2, tied for 2nd in the AFC with the Cincinnati Bengals. The Dolphins won 2nd place over them by virtue of a series of tiebreakers. In the playoffs, they defeated the Patriots in a rematch by the score of 28-13. They then defeated the Chargers in a rematch of the 1981 Divisional Playoffs by a score of 34-13. In the AFC Championship game, they shutout the Jets, 14-0 to reach the Super Bowl for the first time since 1973. In Super Bowl XVII, they lost to the Redskins 27-17 in a rematch of Super Bowl VII which concluded Miami's perfect 1972 season.
Document 11: John Steigerwald: John Steigerwald (born October 3, 1948), is a Pittsburgh-based sports reporter, commentator, and former sports anchor and second oldest member of the Steigerwald media family that includes his older brother Bill and younger brothers Paul Steigerwald and rock guitarist Dan Steigerwald. John worked on the sports anchor team at WTAE-TV (ABC), along with other Pittsburgh notables such as Myron Cope and Bill Hillgrove. He later moved to KDKA-TV (CBS) in 1985 and was an anchor and primary Pittsburgh Steelers reporter for 30 years. KDKA chose not to renew his contract in 2007. Until 2015 he was a "Sports Talk" host on the radio website of the Pittsburgh Tribune-Review. He writes a weekly column for The Daily Caller and his web site is JustWatchtheGame.com. John's brother Bill Steigerwald is an ex-newspaperman and book author ("30 Days a Black Man" and "Dogging Steinbeck") who worked at the Los Angeles Times in the 1980s, the Pittsburgh Post-Gazette in the 1990s and the Pittsburgh Tribune-Review in the 2000s. Paul Steigerwald, a former KDKA-TV sports reporter, is the Pittsburgh Penguins television play-by-play announcer.
Document 12: Chris Berman: Christopher James Berman (born May 10, 1955), nicknamed Boomer, is an American sportscaster. He has been an anchor for "SportsCenter" on ESPN since 1979, joining a month after its initial launch, and hosted the network's "Sunday NFL Countdown" program from 1985 to 2016. He has also anchored "Monday Night Countdown", U.S. Open golf, the Stanley Cup Finals, and other programming on ESPN and ABC Sports. Berman calls play-by-play of select Major League Baseball games for ESPN, which included the Home Run Derby until 2016. A six-time honoree of the National Sports Media Association's "National Sportscaster of the Year" award, Berman was instrumental in establishing ESPN's lasting popularity during the network's formative years. He is well known for his various catchphrases and quirky demeanor. In January 2017, it was announced that Berman would be stepping down from several NFL-related roles at ESPN, but would be remaining at the company.
Document 13: 1978 Miami Dolphins season: The 1978 Miami Dolphins season saw the team return to the NFL playoffs for the first time since 1974, with an 11–5 record. Quarterback Bob Griese missed the first seven games due to a knee injury. The Dolphins got off to a 5-2 start behind back-up Don Strock. Upon Griese's return the Dolphins earned a birth to the playoffs as a Wild Card. Helping to lead the Dolphins back to the postseason was Running Back Delvin Williams who set a team record with 1,258 yards rushing on the season. In the first playoff game involving two Wild Cards the Dolphins were stunned 17-9 by the Houston Oilers at the Orange Bowl. In the process the Dolphins set two notable records: scoring first in all but one of their sixteen regular season games, and never trailing at any point in eleven games. The former record was equalled by the 2004 Patriots, and the latter was beaten by the 2005 Colts.
Document 14: 1986 NFL season: The 1986 NFL season was the 67th regular season of the National Football League. The defending Super Bowl Champion Chicago Bears shared the league's best record with the Giants at 14-2, with the Giants claiming the spot in the NFC by tiebreakers. In the AFC, the Cleveland Browns earned home-field advantage with a record of 12-4, and they hosted the New York Jets in round one of the AFC playoffs. The Jets had started the season at 10-1 before losing their final five contests. The game went to double OT, with the Browns finally prevailing 23-20. The following Sunday, John Elway and the Denver Broncos defeated the Browns by an identical score in the game known as The Drive, where Elway drove his team 98 yards to send the game to overtime to win. The Giants would defeat their rival Washington Redskins in the NFC title game, blanking them 17-0 to advance to their first Super Bowl. The season ended with Super Bowl XXI when the New York Giants defeated the Denver Broncos 39-20 at the Rose Bowl to win their first league title in 30 years.
Document 15: Super Bowl XVII: Super Bowl XVII was an American football game between the American Football Conference (AFC) champion Miami Dolphins and the National Football Conference (NFC) champion Washington Redskins to decide the National Football League (NFL) champion for the 1982 season. The Redskins defeated the Dolphins by the score of 27–17 to win their first Super Bowl championship. The game was played on January 30, 1983 at the Rose Bowl in Pasadena, California.
ground_truth: Bryant Gumbel