Here are the top five shows with our online audience since the new year began  — just click on the links for the streaming audio or download the podcasts. It's an On Point fan test: Did you catch them all?:

1) Tap Water & Chemicals: Debating the Concerns

2) Dr. Atul Gawande on Health Care & the Age of Reform

3) Bird Deaths Examined; Plus, Fraud and Autism-Vaccine Claims

4) Congress and Constitutional Arguments

5) The Shooting in Arizona