That version of Dream House is a story in itself.
It originated from the erstwhile Colonial theater in New York city. In the 1950s, RCA acquired the Colonial and used it as a test bed for color TV as well as a theater to produce color programs for NBC.
Color television was a really big deal in those days, especially for RCA. RCA had an all-electronic color TV system in competition with a system developed by CBS which involved spinning color filter wheels. At the time, both companies manufactured TV receivers and they both had a potential stake in manufacturing color TV sets. RCA was also working on color TV at their headquarters in Camden, New Jersey. A major consideration was the fact that the CBS color system was incompatible with the existing user base of B&W receivers. Consumers would have to buy new TV sets to receive anything at all with the CBS system.
The Price Is Right was one of the first color shows on NBC and originated from the Colonial theater. The Colonial was equipped with four huge RCA TK-40 cameras, each weighing 350 pounds, with racks of associated vacuum-tube electronics which consumed a lot of power and generated a lot of heat.
TPIR was eventually cancelled by NBC and RCA/NBC vacated the theater. TPIR moved to ABC, originating from the Ritz theater where it continued for several years in glorious black and white. RCA won the color TV war with CBS. In addition to color receivers, RCA went on to manufacture TV studio and transmission equipment.
ABC was the next occupant of the Colonial. They installed more modern cameras and the hoary, dated old TPIR set was gone. A snazzy new set was constructed for Dream House. As TV production migrated to the west coast, the Colonial theater was ultimately demolished. There was a lot of TV history in that theater.