A color model from Admiral C1617A became available in the Chicago area on January 4, 1954 and appeared in various stores throughout the country, including those in Maryland on January 6, 1954, San Francisco, January 14, 1954, Indianapolis on January 17, 1954, Pittsburgh on January 25, 1954, and Oakland on January 26, 1954, among other cities thereafter. A color model from Westinghouse H840CK15 ($1,295, or ) became available in the New York area on February 28, 1954; Only 30 sets were sold in its first month. a less expensive color model from RCA (CT-100) reached dealers in April 1954. Television's first prime time network color series was "The Marriage", a situation comedy broadcast live by NBC in the summer of 1954. NBC's anthology series "Ford Theatre" became the first network color filmed series that October however, due to the high cost of the first fifteen color episodes, Ford ordered that two black-and-white episodes be filmed for every color episode. The first series to be filmed entirely in color was NBC's "Norby", a sitcom which lasted 13 weeks, from January to April 1955, and was replaced by repeats of "Ford Theatre"s color episodes.