Final answer:
True, the 'on-demand' model has resulted in audience fragmentation, which has weakened the competitive advantage of network television.
Step-by-step explanation:
True, the shift towards an 'on-demand' model is contributing to the decline of competitive advantage for network television due to audience fragmentation. With the advent of cable, satellite, and Internet subscription services like Netflix, viewers have gained the flexibility to watch content on-demand rather than adhering to a network's schedule. This change has caused traditional networks to lose a share of their audience, as consumers now have an extensive variety of options for media consumption, leading to a fragmentation of viewers across multiple platforms.
Moreover, narrowcasting has increased, segmenting programming into a multitude of genres and appealing to specific audience segments. This audience fragmentation makes it more challenging for networks to capture and maintain large, unified viewerships and, consequently, affects their advertising revenues and market share.