"That 70's Show" was entertaining because it had interesting/relatable-ish characters and decent stories that were placed in the context of 70's culture. I suspect that like most sequels/spin-offs, the executives totally misunderstood what made the original popular so "That 80's Show" ended up essentially being a series of memes rather than a coherent story. I thought "The Goldbergs" did a good job with the 80's like "That 70's Show," "The Wonder Years" with 60's culture and "All In The Family" with the 50's culture.