3rd Rock From The Sun - Two

Episodes:

Brains and Eggs - Four aliens arrive on earth, form human bodies and assume the identities of Dick, Sally, Harry and Tommy, the Solomon family, for the purpose of conducting experiments and observing life on this planet.

I Enjoy Being A Dick - When Dick confronts Sally about her obsessive shopping habits, she decides it's time she and Harry get jobs to earn their own money. Feeling excluded when Nina and Dr. Albright do some female bonding, Dick dresses in drag.

Dick and Taxes - The aliens are introduced to the concept of paying income tax. Dick has been warned that it's a complicated process, but the aliens find the tax forms silly and boring as they make their first attempt to file a return. It isn't long, however, before they're as dazed and confused as any human taxpayer.