Basically, a podcast is like an online form of talk radio. The only difference is that you have certain advantages with a podcast such as the ability to listen whenever you want instead of a certain time or day. While podcasts are somewhat like radio talk shows, they are very different at the same time—like YouTube videos and television. A podcast is best described as a series of episodes stored in audio files, the same type as the ones you use for music in your smartphone or laptop. Just like any other radio or television talk show, a podcast is usually based on a theme—think gaming, horror, entertainment, sports, politics, etc. With each episode, a subject in that theme is tackled. You can choose to subscribe to the podcast (typically free) or listen to a specific subject. One popular podcast is Pod Saves America and it tackles political news progressively. The hosts are Daniel Pfeiffer, Jon Lovett, Tommy Vietor, and Jon Favreau. They frequently invite experts as guests to give their opinions. The episodes are mainly centered on political issues such as tax reform or healthcare. Another podcast is the Critical Role. 

Pod Saves America and it tackles political news progressively. The hosts are Daniel Pfeiffer, Jon Lovett, Tommy Vietor, and Jon Favreau. They frequently invite experts as guests to give their opinions. The episodes are mainly centered on political issues such as tax reform or healthcare. Another podcast is the Critical Role.