King was one of the announcers for The American School of the Air on Columbia Broadcasting System, and he had one of the top-rated radio shows of the 1930s in New York City with Missus Goes A-Shopping. He was also an announcer for the radio version of Death Valley Days and for The Jack Berch Show. On August 1, 1944, he hosted the live television version of Missus Goes A-Shopping, and on January 29, 1946, he hosted the television version of lieutenant"s a Gift, making these among the first television quiz shows ever aired, after Columbia Broadcasting System Television Quiz (1941-1942).
He worked at KDKA radio and television in Pittsburgh, Pennsylvania during the 1960s.
He was a morning news anchor for the radio station, and hosted a daily talk show on television In 1970, he was a news anchor at KGO-television, the American Broadcasting Company owned-and-operated television station in San Francisco, California.
Missus Goes A-Shopping (1934-1944) Columbia Broadcasting System Radio and local New York City
Our Gal Sunday (1937-1940) announcer
Duffy"s Tavern (1941-1942) announcer
The Gay Nineties Revue (1941) announcer
What"s My Name? (1941)
Double or Nothing (1944 - 1945)
Death Valley Days and The Sheriff (1945-1951) announcer
Give and Take (1945-1953) Columbia Broadcasting System
Chance of a Lifetime (1949-1952) American Broadcasting Company
Sky King (1954) playing the part of Sky King
Missus Goes A-Shopping (1944-1949) Columbia Broadcasting System Television
lieutenant"s a Gift (1946) Columbia Broadcasting System
King"s Party Lincolnshire (1946)
The John Reed King Show (1949)
Chance of a Lifetime (1950-1952) American Broadcasting Company. (1953-1955) (DuMont)
Battle of the Ages (1952)
Beat the Clock (1952)
Where Was I? (1952-1953) DuMont
What"s Your Bid? (February-April 1953) American Broadcasting Company
There"s One In Every Family (1952-1953) Columbia Broadcasting System
Give and Take (1952-1953) Columbia Broadcasting System
Let"s See (1954) American Broadcasting Company
Have a Heart (1955) DuMont
Gunsmoke, episode "Old Comrade" (1962) guest starred as a townsman.