You’ve had an idea for a sitcom. You need to find out not only if it has legs for a pilot but also for a series. Now, you don’t necessarily have to write al the episodes, especially if you’re trying to get an agent. You just need a pilot script. But it would benefit you knowing if it would work as a series. Particularly if you get to the point where someone wants to know more information about it and whether it would work as a series. Or if you decide to produce it yourself.
Here’s what I did.