The ones that have trouble with their broadcast audio often simply lack knowledge. The few that do have good audio are usually mega churches or other large churches that have invested a considerable amount of money into their audio chain. Unfortunately, not many churches have a good audio signal in their broadcast. Most churches broadcast their worship services to some sort of mass media transport such as the Internet (video streaming), radio, TV channel, to other campuses, or they just record them for distribution later in audio CD, DVD, or Video-on-Demand (VOD).