The kids have had their toys. Now Burger King is handing the prize box to customers who remember cassette tapes and television schedules that could not be skipped. The fast-food chain has rolled out Boomer King in France, a limited menu inspired by the television, snacks, and unapologetically cheesy aesthetics of the 1980s and 1990s. Created by agency Buzzman, the campaign targets customers who grew up watching shows such as Charmed, Beverly Hills, 90210, Saved by the Bell, and Knight Rider.