The Best '90s TV Shows Available to Stream Right Now | Glamour
Out of This World (TV Series 1987–1991) - IMDb
90s live action TV show for kids, main character is a female alien teenager sent to/abandoned on Earth. The letter Z was prominent - Science Fiction & Fantasy Stack Exchange
Amazon.com: Alien Nation - The Complete Series: Gary Graham, Eric Pierpoint, Michele Scarabelli, Lauren Woodland, Sean Six, Terri Treas, Molly Morgan, Jeffrey Marcus, Jeff Doucette, Ron Fassler, Lawrence Hilton-Jacobs, Andreas Katsulas, Chuck
An early 90s TV series in which aliens set up embassies on Earth - Science Fiction & Fantasy Stack Exchange