People don't notice announcements, they notice consistency. You'll hear that phrase from me a lot because I don't expect you to hear it the first time I say it.
We live in a noisy world. Your business or your brand may be the center of your universe, but you are barely even a blip on other people's radar. If you want people to notice something, the only way to do this effectively is to show up every day. You must talk about it consistently.
Consistency is the frequency with which you put out content. You have this thing you want people to notice—maybe it's your podcast, your video show, your course, your new product—you've decided on the thing you want people to know about and care about. Now the question becomes: how often are you going to put something out? How often are you going to share new content surrounding this thing you want to promote?
People don't notice announcements, they notice consistency.