Prime time

The prime time or the peak time is the block of broadcast programming taking place during the middle of the evening for television programming. It is used by the major television networks to broadcast their season's nightly programming.
The term prime time is often defined in terms of a fixed time period—for example (in the United States and Canada), from 8:00 p.m. to 11:00 p.m. (Eastern and Pacific Time) or 7:00 p.m. to 10:00 p.m. (Central and Mountain Time). 
Category:Terminology