l do a podcast with friends already where we talk about films that are 10 years old when ever they came out. Nothing professional, just whenever the 4 of us can get together since we live across the country. The first thing you need is a good mike and a quiet place to record. If you live in the town record at night or the mourning, basically when there's less traffic and people outside, also take background noises into consideration like fridges, people in other room, ticking clocks etc. Ya, the first episodes will be awful and awkward but you'll fall into a groove very quickly the more you practice. Speak clearly, I have a muttery low speaking Irish accent so I'm trying to sound a bit less like there's boiled cabbage in my mouth. An you'll need a hook or gimmick, ours is the decade old thing. I don't know what my friend uses to edit it, I'll ask him. And listen to some other podcasts, radio and live streams. Good luck OP ;)