What time frame is commonly referred to as Primetime for television viewing?

Primetime for television viewing is commonly recognized as the period from 8 PM to 11 PM. During this time, networks typically schedule their most popular and highest-rated shows, as this block attracts the largest audience. Advertising is also priced higher during primetime due to the increased viewership, making it a critical time for networks to maximize their advertising revenue. This three-hour window is strategically chosen as it falls after the dinner hour, when most viewers are settled in for the evening and more likely to watch television, thus making it the peak viewing period of the day.