NBC dominated Thursday night primetime television in the 1990s with scripted sitcoms and dramas like Friends and ER. This began to change in the 2000s as reality television grew in popularity due to lower production costs. NBC chairman Jeff Zucker announced in 2005 that the network would devote the first hour of primetime each night to unscripted reality shows and reduce scripted programming. This shift reflected the growing importance of reality TV and prepackaged formats to television's business model and its ability to generate revenue through product placements, merchandising, and audience engagement across multiple platforms.