SSTV
From PBARC
Slow-Scan Television (SSTV) refers to any method of sending pictures over amateur radio. Although the vast majority of SSTV activity uses computers for modulation and demodulation (similar to many digital modes), most SSTV modes are analog.
Samples
Robot
Robot 36
File:SSTV Robot36 Leo.wav (36 seconds per picture)
Robot 72
File:SSTV Robot72 Leo.wav (72 seconds / 1 minute 12 seconds per picture)