Wondering what solution you settled on in your “time shifting” of your church service….I have the same situation and I have it set up with a Blackmagic STEM TV studio, sending a feed to the other room, and now I need to DVR the stream, so I can pause the playback for about 3 minutes, before starting the playback. Also have an iMac to receive the signal with a thunderbolt blackmagic capture device.
Would like software for the mac to handle the capture and playback.