 In 1990, during the Major League Baseball lockout, he tried out for the Oakland Athletics.Christensen became a broadcaster, co-hosting the second half of the first season of "American Gladiators" with Mike Adamle.He later joined the "NFL on NBC" as a color commentator from 1990 to 1994, teaming up with Charlie Jones for the first four years and, had Greg Gumbel stayed in CBS, he would have teamed up with Drew Goodman instead Jim Lampley in 1994.