VIDEO

Breaking Barriers Preview

This episode traces the story of people of color on American television—including the breakthroughs of African-Americans Diahann Carroll (Julia) and Bill Cosby (I Spy); Latinos Desi Arnaz (I Love Lucy) and Edward James Olmos (Miami Vice); and Asian-Americans George Takei (Star Trek) and Margaret Cho (All American Girl).

Episode airs Tuesday, April 29 at 8PM (check local listings).