I'm watching the Mork & Mindy marathon on sci fi right now.
The episode is: "Mork goes Public"
The guy playing Mindy's Dad is wearing the "shower curtain" parka from Naked Time and the Top helmet section of the eva suit from Tholian Web.
I wonder if Mork's costume was a mod of Col. Green's uniform. It looks very similar.
The show is a Paramount production so it's not surprising.