Question

what made television revolutionary in the postwar years? the ability to watch tv on the go the ability to record shows at home the lack of commercial breaks the combination of in-home audio and visual entertainment

Explanation:

Television in the postwar years combined in - home audio and visual entertainment. Before television, radio provided audio entertainment at home, and going to the cinema provided visual entertainment. Television brought both together in the home. The ability to watch TV on the go (like portable TVs) was not a postwar (immediately after WWII) feature. The ability to record shows at home (VCRs) came much later (1970s - 1980s). And television in the postwar years did have commercial breaks.

Answer:

The combination of in - home audio and visual entertainment.