The legal drama series Perry Mason was originally broadcast on
CBS television from September 21, 1957, to May 22, 1966. The
title character, portrayed by Raymond Burr (1917 – 1993) is a
Los Angeles criminal defense lawyer who originally appeared
in detective fiction by Erle Stanley Gardner. Many episodes are
based on stories written by Gardner. 

Perry Mason was one of Hollywood’s first weekly one-hour series
filmed for television, and remains one of the longest-running and
most successful legal-themed television series.

The show has been a staple in syndication, running for many
years on local television stations and cable networks across
the United States.
From Wikipedia, the free encyclopedia

Erle Stanley Gardner (1889 – 1970)

(Variety) – Terry Carter, who played sergeant Joe Broadhurst
on the TV series "McCloud" and detective Colonel Tigh on
the original "Battlestar Galactica," died at his home in New   
York, N.Y., Tuesday morning.

  Mid 1950s

Robert Wayne Amsberry
(June 2, 1928 – November 21, 1957)

Amsberry was born in 1928 in Boring, Oregon and 
graduated from Franklin High School in Portland,
where he was a friend and classmate of popular 
singer Johnnie Ray (below) born in Dallas,Oregon.

John Alvin Ray (1927 – 1990)

Amsberry worked on The Mickey Mouse Club, a
then-new series, writing skits as well as acting
on the show in various characters.

Bob was also a voice actor, with a posthumous
credit in Disney’s Sleeping Beauty (1959).

On the morning of November 21, 1957, Amsberry
was involved in a car accident as a passenger
with Roy Williams, another Disney employee,
in Portland. Amsberry died of injuries sustained
in the accident.
(From Wikipedia, the free encyclopedia)

The TV sitcom Happy Days aired first-run on the
ABC network from January 15, 1974, to July 19, 1984, with a total of 255 half-hour episodes spanning
11 seasons. Created by Garry Marshall, it was one
of the most successful series of the 1970s.