How do I play video podcasts with video instead of audio only

Love the app but wanted to know how to play podcasts from youtube that have video with the video. When trying to do so I can only play these podcasts with audio only.

Start the episode and then press the miniplayer on the bottom of the screen.

Please note that you can not subscribe to YouTube channels directly and play within AntennaPod. What you subscribed to is probably a normal podcast and, from a technical side, not related to YouTube. That creator might be publishing on YouTube, too, but the videos are not coming from YouTube (that would violate their TOS).