Andy does live video streaming at the FocusTV Network and he's having issues with live audio through his Lav mics. Leo says that network TV audio is terrible, but people never seem to notice it because viewers are paying attention to the video as well. Leo doesn't use Lav mics at all if he can avoid it. He uses a good studio microphone for the best possible sound. If he considers his talk show a radio show with pictures, and mix with the right mics, it'll sound better.
Carl wants to start up a podcast running four different XLR mics through a mixer. He wants multiple channels for each one. Is the mixer what he needs? Leo says that while condenser mics are more accurate and hear everything, he really wants a coiled diaphragm mic, which doesn't pick up everything - just the voice. Leo uses a Heil PR-40. But for a budget, the Shure SM58 mic is very forgiving. Leo says for a mixer, the Behringer XR18 is great. He can control it from an iPad, it has great mic pre-amps, and is simply a good choice.