Question: What company's advertising mascot was the precursor to the dog that debuted in a Bud Light Super Bowl XXI ad in 1987?
Sentence (from "Jerry Markbreit"): Until he retired from the NFL after the 1998 season, Markbreit officiated in two wild card (1991 and 1994), ten divisional (1979, 1981, 1982, 1985, 1986, 1987, 1988, 1995, 1997, and 1998), eight conference championship (1980, 1983, 1984, 1989, 1990, 1992, 1993, and 1996) playoff games, one Pro Bowl (1978), and four Super Bowls: Super Bowl XVII, Super Bowl XXI, Super Bowl XXVI, and Super Bowl XXIX and was an alternate in Super Bowl XIX, Super Bowl XXII, and Super Bowl XXVIII.
Relevant evidence: No