I watched this show back when it aired on Nick @ Nite in the 1980s. I really enjoyed this show. It is funny. It is a spin-off from the show Happy Days. Robin Williams as Mork is hilarious. What can I say about this show? Robin Williams is the perfect person to play Mork. He is just a funny guy. Playing an alien is up his alley.
The writing was great. The ad-libbing was great. This show was great. I was a little kid when I watched this show and I haven't seen it since, but I'm sure I would enjoy it just as much today.