I can't imagine doing an hour-long dramatic series because it's so much work. A sitcom is a wonderful gig. You work from 10 to 4 every day, it's fun, and you get to live at home.
Look at the darkest hit musicals - Cabaret, West Side Story, Carousel - they are exuberant experiences. They send you out of the theater filled with music.
If it's well written and well directed and you've got good actors to work with, acting is easy. But making sure all the ducks are in a row is the hard part. It's very rare.
