The golden rule: the online audience is not an afterthought. It's usually the bigger audience. Design the show for both rooms from day one, and appoint one person who owns the join between them.
Audio
- Will the stream take a dedicated mix, not the room PA feed?
- Who provides the audio split, on what connector, pre- or post-fader?
- Do remote speakers get mix-minus returns so they don't hear themselves?
- Is there a handheld backup mic on stage and fresh batteries at every break?
Audio is 80% of perceived stream quality. Settle it first. Stream audio in depth.
Cameras and vision
- How many cameras cover the stage, and is at least one framed for screens rather than the back of the room?
- Are slides fed to the stream as a clean source rather than a camera pointed at a projector?
- Who mixes the stream, and is it a different person from whoever mixes the room screens?
- Are the stage lighting states designed for camera as well as the room?
Remote contribution
- How do remote speakers join, a managed broadcast link or a consumer video call?
- Have they been tested on the actual hardware and connection?
- Where does a remote speaker appear in the room, and can they see and hear the room?
- What is the fallback if their link fails?
Connectivity
- Is there dedicated wired internet for the stream, separate from guest Wi-Fi?
- What's the backup path (bonded cellular, second circuit) and has it been tested in the room?
- Has someone speed-tested the line from the position the encoder will sit?
The platform layer
- Where does the online audience watch, and can they interact, Q&A, polls, chat?
- Do questions from the platform reach the moderator on stage, and how?
- Has the player been tested on the audience's corporate network?
People
- Who is the single technical point of contact across venue AV, streaming and platform?
- Who calls the show for the stream, and how do they talk to the room's stage manager?
On hybrid shows the most common failure isn't equipment. It's three suppliers each assuming another one owns the gap. That's the job we're most often hired to do: own the gap.
Print this, take it to the production meeting, and don't leave until every question has a name next to it.