I have to ditto this comment. We are still using (expensive) 3rd party applications to deliver shows for television. Most PBS stations use old(er) playback servers that are setup for MXF files, etc and a lot of us have to deliver to these stations. I hope that Apple allows us to caption our MXF files at some point in time. We are also paying for a captioning service and would love to be able to only use Apple products by having FCPX start the initial pass caption for us. Even if we have to go in and correct mistakes that the AI introduced it would be amazing to stay within FCPX.