The journey begins in radio's golden age, tracing the sitcom's transition to television in the 1950s, where live audiences and the three-camera setup became the industry standard. The narrative follows the genre's evolution through the 1970s, when Norman Lear's groundbreaking shows (All in the Family, The Jeffersons) weaponized laughter to tackle racism, abortion, and war. The book then explores the economics of syndication and the "must-see TV" era of the 1980s and 90s (Cheers, Seinfeld, Friends), where networks discovered that a hit sitcom could generate billions in rerun revenue. Later chapters analyze the mockumentary revolution (The Office, Parks and Recreation), the single-camera renaissance (30 Rock, Brooklyn Nine-Nine), and the streaming-era disruption (shorter seasons, no laugh tracks, niche audiences). Key pop economics concepts include: network effects (why appointment viewing created cultural watercooler moments), the economics of the writers' room, the value of the "will they/won't they" romantic tension as a retention strategy, and the changing portrayal of work, class, and housing affordability on screen. Warm, witty, and whip-smart, Sitcoms argues that the shows we binge for comfort are secretly teaching us about the economics of relationships, resilience, and why we keep coming back episode after episode.