Despite their popularity, I don't really consider any of those things really to be.all that relevant or memorable.
Yeah not even MC Hammer, sorry to say. He was on top of the world for about 2 years, then dropped off the face of the music scene altogether. His style of hip-hop was killed off rather quickly by NWA and its spinoffs (Ice Cube, Easy E, Dr. Dre) and then Death Row records/ Snoop Dogg, and was mostly forgotten except for the occasional laugh (along with Vanilla Ice). It was kinda like the early 90s equivalent of Styx in the late 70s.
I honestly do not remember Kid N' Play.
SBTB and 90210 were geared almost exclusively towards the YA crowd, which is incredibly fickle and has little inter-generational staying power.
The vast majority of sitcoms were basically forgetable. There are certain exceptions - like the All In The Family, The Brady Bunch, The Cosby Show, Leave It To Beaver, which persisted re-runs. If anything, Seinfeld was probably the more relevant sitcom of the 90s if anyone knows anything.