Roby handled announcing for numerous radio and television programs during his career, including Monitor[4] and working as sub-announcer on Concentration and The Price Is Right in the early 1960s.
Over the years, Roby did many commercials for various products and services on both radio and television; he was part of a group of New York announcers (also including his NBC colleague Howard Reig and WOR-TV's Phil Tonken) who did so.
Roby made headlines in 1969 when he put an advertisement in Variety indicating that he would no longer be available for cigarette commercials, citing "evidence .
Roby also served as host, narrator or interviewer on numerous public affairs shows that ran on NBC's New York radio and TV outlets.
On WNBC-TV, he was a moderator of the discussion/call-in show Direct Line for much of its 1959–73 run, and after its cancellation he was one of the narrators of the long-running weekly documentary series, New York Illustrated.