Monday August 25, 1958 (Debut Show)

Tuesday August 26, 1958

Wednesday August 27, 1958

Thursday August 28, 1958

Friday August 29, 1958

Monday September 1, 1958

Tuesday September 2, 1958

Wednesday September 3, 1958

Thursday September 4, 1958

Friday September 5, 1958

Monday September 8, 1958

Tuesday September 9, 1958

Wednesday September 10, 1958

Thursday September 11, 1958

Friday September 12, 1958

Monday September 15, 1958

Tuesday September 16, 1958

Wednesday September 17, 1958

Thursday September 18, 1958

Friday September 19, 1958

Monday September 22, 1958

Tuesday September 23, 1958

Wednesday September 24, 1958

Thursday September 25, 1958

Friday September 26, 1958

Monday September 29, 1958

Tuesday September 30, 1958

Wednesday October 1, 1958

Thursday October 2, 1958

Friday October 3, 1958

Monday October 6, 1958

Tuesday October 7, 1958

Wednesday October 8, 1958

Thursday October 9, 1958

Friday October 10, 1958

Monday October 13, 1958

Tuesday October 14, 1958

Wednesday October 15, 1958

Thursday October 16, 1958

Friday October 17, 1958

Monday October 20, 1958

Tuesday October 21, 1958

Wednesday October 22, 1958

Thursday October 23, 1958

Friday October 24, 1958

Monday October 27, 1958

Tuesday October 28, 1958

Wednesday October 29, 1958

Thursday October 30, 1958 (Daytime)

October 30, 1958 (Nighttime)

Friday October 31, 1958

Monday November 3, 1958

Tuesday November 4, 1958

Wednesday November 5, 1958

Thursday November 6, 1958 (Daytime)

November 6, 1958 (Nighttime)

Friday November 7, 1958

Monday November 10, 1958

Tuesday November 11, 1958

Wednesday November 12, 1958

Thursday November 13, 1958 (Daytime)

November 13, 1958 (Nighttime)

Friday November 14, 1958

Monday November 17, 1958

Tuesday November 18, 1958

Wednesday November 19, 1958

Thursday November 20, 1958 (Daytime)

November 20, 1958 (Nighttime)

Friday November 21, 1958

Monday November 24, 1958

Tuesday November 25, 1958

Wednesday November 26, 1958

Thursday November 27, 1958 (Preempted for Macy's Parade)

Friday November 28, 1958

Monday December 1, 1958

Tuesday December 2, 1958

Wednesday December 3, 1958

Thursday December 4, 1958

Friday December 5, 1958

Monday December 8, 1958

Tuesday December 9, 1958

Wednesday December 10, 1958

Thursday December 11, 1958

Friday December 12, 1958

Monday December 15, 1958

Tuesday December 16, 1958

Wednesday December 17, 1958

Thursday December 18, 1958

Friday December 19, 1958

Monday December 22, 1958

Tuesday December 23, 1958

Wednesday December 24, 1958

Thursday December 25, 1958

Friday December 26, 1958

Monday December 29, 1958

Tuesday December 30, 1958

Wednesday December 31, 1958

Thursday January 1, 1959

Friday January 2, 1959

Monday January 5, 1959

Season 1

Wednesday September 2, 1959

Reality

Concentration

Concentration is an American television game show based on the children's memory game of the same name. Matching cards represented prizes that contestants could win. As matching pairs of cards were gradually removed from the board, it would slowly reveal elements of a rebus puzzle that contestants had to solve to win a match.

The show was broadcast on and off from 1958 to 1991, presented by various hosts, and has been made in several different versions. The original network daytime series, Concentration, appeared on NBC for 14 years, 7 months, and 3,770 telecasts, the longest run of any game show on that network. This series was hosted by Hugh Downs and later by Bob Clayton, but for a six-month period in 1969, Ed McMahon hosted the series. The series began at 11:30 AM Eastern, then moved to 11:00 and finally to 10:30. Nearly all episodes of the NBC daytime version were produced at 30 Rockefeller Plaza, New York City.

A weekly nighttime version appeared in two separate broadcast runs: the first aired from October 30 to November 20, 1958 with Jack Barry as host, while the second ran from April 24 to September 18, 1961 with Downs as host.