Slow-scan television is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color.
Astronaut Gordon Cooper, SSTV transmission from Faith 7
NASA slow-scan image from the Moon
Encoded image in B/W 8 system.
The Apollo 11 missing tapes were those that were recorded from Apollo 11's slow-scan television telecast in its raw format on telemetry data tape at the time of the first Moon landing in 1969 and subs
Slow-scan television
…the Apollo 11 Lunar Module television from the Moon. NASA had taken all the original tapes and erased them for use on subsequent missions; however, the Apollo 11 Tape Search and Restoration Team formed in 2003 tracked down the highest-quality films among the converted recordings of the first broadcast, pieced together the best parts, then…
The original slow-scan television signal from the Apollo TV camera, photographed at Honeysuckle Creek on July 21, 1969
The television camera, as it was positioned on the Apollo Lunar Module Eagle at the start of the first lunar EVA (Extravehicular Activity)