When you run an internet radio, there really isn't much down time if you want to run a quality station. Sure you could set everything to run through your automation system and let it go on endlessly. You should be always thinking of ways to keep your programing. fresh. This could be just updating the imaging from time to time. changing the music rotation periodically, adding new music, or doing some advertising. Programming should be consistent but should also sound fresh.
Keep thinking of new things that you can do to increase your audience. It will pay off!