Considerations of plot do a great deal of heavy lifting when it comes to long-form narrative - readers will overlook the most ham-fisted prose if only a writer can make them long to know what happens next.
You can't really go into TV thinking, 'Maybe I can make a few bucks doing this thing I'm only kind of interested in to support my one true love, which is prose fiction.' I think you have to love what you're doing to do it well.