Perfect is hard to say because most of the shows i love will always have small flaws.
Brooklyn 99, pushing dasies, Avatar the last air bender, and futurama would be shows that i would say are the peak best of their genre. some still better than others.
another fantastic show is The Good Place. same creators as Brookyln 99, also perfect.
other shows that i specifically love.
selfie- came out in 2014, lasted 13 episodes before being canceled. was really badly promoted. A modern adaption of My Fair Lady staring Karen Gillian and John Cho as the romantic leads. I don't think people liked it because Eliza had that stereotype of that self absorbed, phone obsessed, popular girl. which is the only thing they really showed in the ads. But she was funny and a good character. and john cho was super attractive in that yo.
Bewitched- Bewitched is in my all time favourite shows, wich is amazing since it's from 1967 and I, someone who watched alot of classic shows, does not like classic shows. Samatha the witch was a good character, the show talked about things that are still relevent today. And the visual gags and practical effects are still fun to watch. I remember watching all 8 seasons. being pleased with it. and then moving on to I dream of Jeanie and immediatly being dissapointed.