Daytime soap operas. Evening news. Late-night talk shows. Television has long been defined by its daily schedule, and the viewing habits that develop around it. Technologies like DVRs, iPods, and online video have freed audiences from rigid time constraints-we no longer have to wait for a program to be "on" to watch it-but scheduling still plays a major role in the production of television. Prime-time series programming between 8:00 and...