On a late afternoon, a child drops a soccer ball that ricochets off a lamppost and into the path of a roaming microphone boom. The host laughs on air, the sound transmitted to people in kitchens and buses and office cubicles. Someone in a distant apartment stops and listens, smiling for a private reason only she understands. The broadcast ends; the moment passes. But "sitel vo živo A1" lingers as a memory-stamp on the day, an imprint that ties together millions of small continuities.