What does TIROS stand for?

Television and Inferred Observation Satellite - National Oceanic and Atmospheric Administration (MLEX)

Television and Infrared Observation Satellite - NASA

Television and Infra-Red Operational System (SAUS)

Television Infrared Observational Satellite - Marine science

Television Infrared Observing Satellite (SAUS)

Television Infrared Operational System (SAUS)

Thermal Infrared Observational Satellite

Topographical Infrared Operations Satellite (NASA)

Topographic Infrared Operations Satellite (SAUS)