The first season of Fresh Prince was really good. It's not the best season, but it has a lot of classic episodes and moments. The only problem is that the characters aren't fully developed yet, which you would expect in the first season. Carlton is just the standard preppy stereotype, Uncle Phil hates Will for the most part, Geoffrey's sarcasm is more subtle, and Hilary's not really stupid, just spoiled and stuck up.
Once the producers realized how much better the show could be in terms of comedy and loosened the reins, it became an undisputed GOAT sitcom.