THE PRICE IS RIGHT (1956-1965) on NBC + abc Daytime.

From September 1957, to September 1964, The Price is Right also ran in prime time. In fact, for a couple of years (1959-1961, if I am not mistaken) TPIR was a top ten show in prime time.
Another factoid: When "Price" was on NBC, the primetime version was in COLOR! When the show moved to ABC, it aired in black and white. While in its years at NBC, "Price" was produced at the Hudson and Colonial Theaters--both color production studios. The move to ABC put "Price" production in the ABC Ritz Theater which had not yet converted to color equipment, and opted not to do so during the "Price" run. For historical purposes, it wouldn't matter anyway, since all known kinescope copies of the original Bill Cullen version of "Price", were recorded on black and white film.
One more factoid: While at NBC, the legendary Don Pardo was the announcer for "Price". Don said, when the show moved to ABC, Bob Stewart asked him to move with the show. However, Don was NBC's booth announcer, and had been with the network for years. Don decided to stay with NBC (despite a big cash incentive from Mark Goodson--and despite his wife's wishes), turning over announcing duties to Johnny Gilbert.

Do you know if there is a way to search shows in the 60's by guest? I want to locate a show that had my deceased mother-in-law on, but I don't know how to do that other than watch every episode.