Acting
Clete Roberts (February 1, 1912 – September 30, 1984) was an American broadcast journalist. He began his career in radio news, then transitioned to television, working for stations in California. In later years, he portrayed himself and fictional broadcast journalists in entertainment media, such as in 1970s episodes of the TV series M*A*S*H.
From Wikipedia.

Memories of M*A*S*H
as Self

Testament
as Newscaster

The Jerk
as Announcer

Meteor
as Network Newscaster

Heatwave!
as Newscaster

Portrait: A Man Whose Name Was John
as Clete Roberts

The Todd Killings
as Reporter in Courthouse

Countdown
as Announcer (uncredited)

The Swinger
as Clete Roberts

Man on a String
as Narrator (voice)

Simon & Simon
1 ep.

Goliath Awaits
as Newscaster (uncredited) · 2 ep.

M*A*S*H
as Interviewer · 2 ep.

Columbo
as TV Anchor Man · 1 ep.

Cannon
1 ep.

McCloud
2 ep.

San Francisco International Airport
as Announcer · 1 ep.

Mission: Impossible
as Announcer · 1 ep.

Bewitched
1 ep.
Meteor
1979