The concept of the series was the showing of unaired and unsold television pilots that did not make the television lineup for CBS. The show was successful during its first few seasons due to the fact that the show's concept, airing unsold and unaired television pilots, was a popular concept in the 1960s. But during its last two seasons on the air, the series did find some trouble due to the fact that the series were running out of pilots to air and, in their 4th season, they began airing repeats from the three seasons prior. During its 1966 summer run, the series aired eights new pilots and two repeats and during its last year airing five new pilots and four repeats.

Darryl Hickman
Schuyler 'Sky' Young

Edgar Buchanan
Luke

Charles Bronson
John Wesley Hardin

Reta Shaw
Mrs. Foley
Soupy Sales
Fred Brady

Pat Crowley
Joan

Andrew Prine
Ernie Watson

William Bendix

Tisha Sterling
Elsie Stanhope
The Hitchhiker62%
A Nero Wolfe Mystery78%
Elsbeth67%
The Rookies68%
The Outlaws73%
The Sylvester & Tweety Mysteries65%
Whiskey Cavalier68%
Wild Cards72%
The New Alfred Hitchcock Presents72%
No Activity67%
The Alfred Hitchcock Hour78%
Bad Girls75%
Alfred Hitchcock Presents77%
Rumpole of the Bailey70%
McDonald & Dodds76%
Moonlighting75%
Harry Wild65%
Five Days58%
Hill Street Blues76%
Death Valley65%