The RCA 648PTK was announced on August 27, 1947,production was 992 units in 1947 and 2500 units in 1948, the selling price was $1,206.05. Tambour doors hide the projection screen when not in use, a 3 band radio is housed in the left side door under the screen. The projection system is the same PTU-1 unit used in all of the RCA projection sets.