Which Landsat Thematic Mapper band shows cloud smoke and haze best?

The Landsat Thematic Mapper band that best shows cloud smoke and haze is Band 1 (Blue band). This band is sensitive to atmospheric particles and can effectively highlight the presence of aerosols and smoke. Additionally, Band 2 (Green band) can also assist in identifying haze, but Band 1 is typically more effective for detecting these atmospheric conditions.