The Adventures of Superman was a long running radio serial adapted from
the DC Comics character that originally aired from 1940 to 1951. It began as
a syndicated show on New York City’s WOR. The Serial went to the Mutual
network from August 31, 1942, to February 4, 1949 as a 15-minute show,
usually running three or five times a week. Superman was picked up by
the ABC radio network in October of 1949, returning to afternoon air
time twice a week until March 1, 1951. Bud Collyer played the title
role with Joan Alexander playing Lois Lane, both pictured below.

Bud Collyer played Superman/Clark Kent 

Joan Alexander was Lois Lane

That well known signature opening of Superman, one
of the most famous in radio history, was delivered by
Jackson Beck (above), the announcer-narrator of the
show from 1943 to 1950.
 

First Superman comic

My Friend Flicka is a 39-episode western television series set at the fictitious
Goose Bar Ranch in Wyoming at the turn of the 20th century. The program
was filmed in color but initially aired on Fridays in black and white on CBS
until February 1, 1957. It was a mid-season replacement for Gene Autry’s
The Adventures of Champion. Both shows failed in the ratings against
ABC’s The Adventures of Rin Tin Tin.

LOS ANGELES — David Nelson, who starred on his parents’ popular television show "The Adventures of Ozzie and Harriet," died Tuesday, a family spokesman said. He was 74.

Nelson died at his home in the Century City area of Los Angeles after battling complications of colon cancer, said family spokesman and longtime Hollywood publicist Dale Olson.

Nelson was the last remaining member of the Nelsons TV family, which included actor/bandleader Ozzie, his singer wife, Harriet Hilliard and his teen idol brother Rick. (AP)