There's a literal world of difference between the sitcoms from the '80s and earlier, and the ones which emerged in the '90s and beyond. The older sitcoms were defined by their laugh tracks, multi-camera approach, eccentric characters with little development, episodic structure, and broad, wacky humor. Eventually, a sense of ironic detachment set in with '90s series like Seinfeld and Get a Life, followed by a more intimate, serialized format like How I Met Your Mother, and the removal of laugh tracks with the mockumentary style of The Office and Parks and Recreation.
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