At this stage, ZenCast is focused on audio-only podcasts. Many listening platforms don't fully support video, and popular listening methods such as smart speakers & car audio don't support video either.
We don't necessarily recommend against it, but keep in mind that producing and editing video alongside your audio podcast can be a lot of extra work and cost.
We recommend publishing your audio podcast on ZenCast, which will publish out to all the major podcasting apps, and then for video upload directly to YouTube as that's where the overwhelming majority of the video-viewing audience is.
Then, provide links to your audio-only podcast on other platforms in your YouTube video descriptions and on your YouTube channel. YouTube has a great search algorithm and can be a valuable place for your podcast to get discovered, allowing you to use it to build traffic on audio-only podcast apps too.