Karl Barth has influenced many theologians, even evangelicals and those who are confessionally Reformed. Barth is certainly in the theological milieu, but his influence is much larger than most might anticipate. He is monumental, and his thought is extremely significant. Confessionally theologians should become familiar with the salient features of his theology in order to set forth a biblically faithful theology in accord with the historic Reformed creeds and confessions.
This clip is from Christ the Center episode 659 (https://www.reformedforum.org/ctc659)