[4] Machado's television career began in 1967, when he signed on at KHJ-TV (now KCAL-TV) as an on-air news reporter, a first for a Chinese American.
The following year he began working as a color commentator at CBS owned-and-operated KNXT (now KCBS-TV) in Los Angeles.
[4] He became a regular reporter in 1970 on the CBS nightly broadcast, The Big News, which was Los Angeles' most popular newscast in the 1960s.
In the early and mid-1970s, Machado hosted the daily news and interview show, Noontime, which aired for seven years on KNXT.
On the big screen, as well, Machado often portrayed a news anchor or reporter, notably as Casey Wong in the three RoboCop films.
Machado's last acting role was the 1998 episode "The Nature of Nurture" of the television series Beverly Hills, 90210.
Machado's distinctive voice can also be heard on a number of films for Retinitis Pigmentosa International's TheatreVision, which provides blind audiences with a description of what is happening on the screen.
When the English Premier League was formed in 1992, Machado was the narrator of the weekly Prem highlights program produced in England and syndicated nationally across the United States.
[7][8] Robert Gohstand, a retired Geography professor at CSUN and Shanghai classmate of Machado, recognized the importance of saving these stories for posterity, and now heads the Old China Hands Archive at California State University, Northridge which was inaugurated in 2002.