This report discusses the Lesotho findings of an external evaluation of the Southern African Regional Social and Behaviour Change Communication Programme, an initiative implemented in 8 countries in Southern Africa from 2007 to 2011 to reduce HIV infection by increasing health awareness and facilitating social and behavioural change through both mass media and community-based activities. This evaluation assesses the impact of exposure to interventions on key indicators of HIV knowledge, attitudes, and behaviours. The report outlines how impact varied among the intervention components and demonstrates that some different forms of media may be best used based on gender or desired outcome.