Primetime (noun)

1. The most popular or favorable time for broadcasting a television program or for maximum audience or sales.
2. The period of maximum popularity or profitability.

Origin:

From the adjective prime ("first, best") + time.

Examples:

1. The show is aired during primetime on a major network.
2. The primetime slot for the show is 8pm on Thursdays.
3. The network is hoping the new show will be a hit during primetime.
4. The primetime audience for the show is mostly older adults.
5. The primetime lineup for the network includes several popular sitcoms.