Hey @Blair Wadman5, for security reasons we cannot let iframe embedding in the posts. This will let an attacker do click highjacking or phishing inside your community.
Instead, we add more sources to our supported embeddable links. For instance, in this case we're going to add Crowdcast embedding as an option so when you paste a link to the live video page it'll be replaced with Crowdcast iframe.
I've already added it to our backlog. Will get back here when we have an ETA for it. The more people like this post the faster we'll start implementing it.