Situations can change on a show all the time too. 1st season, "Will & Grace", they were roommates, then they weren't the 2nd, then they were again. "Cheers", started the "Will they or won't they" thing, with Sam & Diane, and then they had to completely change the show when Shelley Long left. The core situation was the same, people in a bar. That's key too, what can change in a situation comedy and what can't? If the core of the sitcom, is the location, then the location can't change. If the core is the characters then they can go anywhere they want and they'll stay the same while everything around them is different. (Look at how many times "Weeds" changed their whole series over the years) Even "I Love Lucy" changed all the time. First they were in the New York apartment, then they traveled to California and Europe and Florida, and then they moved to Connecticut, not to mention they had a kid. So the whole series, constantly was in shift. Lucy wanted to be a star and she and Ethel would get into some ridiculous situation, because of Lucy's pursuit of stardom usually, or to make a point to their husbands or something like that. Knowing the situation, and knowing what the core of the show is. That's what's key to most everything. "Louie", himself doesn't change too much generally. That's not a bad thing, but he explores that in many ways, and he takes advantage of the things you can’t really do with the 3-camera structure, but it’s that no matter he does, the situation is him, and that's what the core of the show is, and that's what he's really doing. No matter what Jack Benny was doing that week, he was always Jack Benny, same with Louis C.K., whatever he's doing that week, he's Louis C.K. And Louie is an aging, overweight, stand-up comic. Divorced, couple kids he watches on the weekends, he has a few friends, he sleeps around occasionally. He wants to be in a relationship, etc. etc. Whatever he does, it sticks within that, Louis C.K. persona and perspective Sometimes life’s good, sometimes it’s not, the situation of him doesn’t change, while the situations around him, often does.
For those of you new you can catch up on the previous class here: