Third, and perhaps most momentous: here also began a race for the conquest of time and space that continues to this day. Amos 'n' Andy demonstrated that an industry could, in effect, wholly "own" a part of the day—in this case, seven p.m., every day, across the land. And it could do so in spaces once inviolable, inconceivable. For with this show, selling had definitively breached the barrier between public and private space. What the agents of commerce could long do "out there" they could now also do "in here," and no one was grumbling, at least not yet.

Tim Wu, The Attention Merchants, loc. 326