This was one of the last programs at NBC to convert to color. It was also one of last (if not THE last) non-news programs to be broadcast "live". It went on the air every weekday morning at 9 am (following the "Today" show) from studio 8G in the RCA Building. While the studio was being converted to color in 1966, "Birthday House" held court in studio 8H where Saturday Night Live (1975) now lives.
In 1966-67 "Birthday House" featured "Freckles" a Saint Bernard puppy. She first came on the show when she was 6 weeks old, and came back every week (growing 8 - 10 pounds each week) until she was a gigantic 160 pound dog. She went on to an expansive career in show business, appearing in Midnight Cowboy (1969), and starring in an opera at Lincoln Center ("The Stoned Guest").