My job requires me to be on call in the off hours for a week or two at a time. I could get paged to log in and deal with issues at all hours of the night. During the first season I was up for several nights and saw a couple of full episodes as well as bits and pieces of other episodes. I think the first full episode I saw was "Careers in Science." I thought it was good. But the first episode that really made me want to watch all the rest was "Tag Sale, you're it."
Since I am about the same age as the creators of the show, many of the references are right up my alley. They obviously watched a lot of the same movies and shows that I watched while growing up.