Live Streaming & Broadcast Production
Multicamera streams, town halls, webinars and executive broadcasts: directed, delivered to your platform and recorded.
Expertise France · Broadcast series episode, multi-location
Five locations in three days, in-person and outdoor interviews and remote experts on Zoom, delivered as one mastered program.
Delivered by Castelein AV, the team behind First Impact.

Expertise France produces “Rendez-Vous de l’Expertise”, a series built around conversations with specialists. For an episode on decent work, the production moved across five Mexico City locations in three days: the French Ambassador’s residence, a studio session, a muralist’s work in La Magdalena Contreras, an outdoor interview in Coyoacán’s Jardín Hidalgo and a round table with international experts joining by Zoom.
Each location had its own light, acoustics and constraints, and none could be reshot. The final program had to read as one broadcast, with remote guests treated as full participants and institutional graphics matching Expertise France’s standards.
A full-frame Sony FX6 led coverage, with a Sony FR7 PTZ and two secondary cameras.
Remote participants joined through Zoom Webinar routed directly into the live switcher.
Branding and lower thirds ran on a Barco S3 and Resolume Arena, separate from camera feeds.
An Allen & Heath SQ5 mix with multitrack capture in Reaper at each location.
With no option to return to a location, recording protection was designed into the chain.
Only equipment verified in the project documentation, grouped by the job it did.
| Equipment | What it did |
|---|---|
| Sony FX6 | Primary full-frame camera |
| Sony FR7 | Remote PTZ angle |
| Sony PXW-Z190, Panasonic AG-CX350 | Secondary coverage |
| Flycam 5500 | Stabilizer for moving segments |
| Equipment | What it did |
|---|---|
| Blackmagic ATEM Television Studio Pro 4K | Live switching |
| Blackmagic HyperDeck Studio HD Plus | ISO and program recording at three points in the chain |
| Barco S3 + EC-30, Resolume Arena | Branding, lower thirds and identifiers, applied live |
| Zoom Webinar | Remote experts routed into the live production |
| Equipment | What it did |
|---|---|
| Allen & Heath SQ5 | Mixing console |
| 6× Shure SLXD, 2× DJI lavalier | Wireless microphones for talent |
| Sennheiser 2000 series in-ear | In-ear monitoring |
| Reaper | Multitrack recording at every location |
| Equipment | What it did |
|---|---|
| 8× Elation KL Panel | Portable LED panels for consistent light across locations |
| High End Systems Hedgehog 4 | Lighting control |
Wireless and lavalier microphones with multitrack capture kept dialogue usable.
Portable LED panels gave consistent, controllable light from the residence to the garden.
Outcomes as documented in the published case. We do not add figures the project did not record.
When a shoot cannot be repeated, protection has to be designed into the signal chain.
Rendez-Vous de l’Expertise, Mexico City episode. Playing loads the video from YouTube. YouTube
Original source: First Impact case study (firstimpact.live)
General answers, with this case as a real example.
Yes. Recording is its own deliverable and does not require a stream. We can record the switched program, each camera separately, the presentations, or a combination.
Agree the file formats, audio channels, storage and delivery date in the proposal, and say whether the material will be edited later. For Expertise France, ISO and program recordings at three points in the chain produced a mastered program with no reshoots.
Case study: Expertise France: Rendez-Vous de l’Expertise in Mexico City · Live Streaming & Broadcast Production
Yes. We bring remote speakers into the room and the program through Zoom, Teams or a similar platform, with return audio so they can hear the room and follow cues.
Results depend on the speaker’s connection, camera, microphone and lighting, so we recommend a technical check with each remote speaker before the event and keep a fallback for their content, such as a pre-recorded version, when the moment is critical.
Hybrid Events & Multi-Site Production · How to Include Remote Speakers in a Live Conference
Yes. Zoom and Teams can bring remote speakers into the room, carry the program to remote employees, or both. We connect them as production sources rather than leaving a laptop pointed at the stage.
Meeting settings, host rights and audio routing need testing with the account owner, because two meetings on the same platform can behave differently. ITP Aero’s All Hands ran on Teams; ICON’s Mexico hub connected into DV4’s Zoom studio.
Case study: ITP Aero All Hands 2026 · Case study: ICON global hybrid event: the Mexico City hub
Yes. We connect rooms, floors, offices or cities into one program, either by producing each location or by building the local hub inside a wider workflow.
Multi-site work depends on clear rules: which location sends what, who directs, how timing is handled and how teams talk to each other during the show.
Hybrid Events & Multi-Site Production · How to Plan a Multi-Location Corporate Broadcast
Multicamera streams, town halls, webinars and executive broadcasts: directed, delivered to your platform and recorded.
Remote speakers, Zoom or Teams integration, and several rooms or locations connected into one program that works in the room and online.

ICON · Mexico City
An international broadcast producer needed a local team to build and run the Mexico City hub of a global hybrid event around its own workflow.
DV4 directed the global broadcast. Castelein AV built and ran the Mexico City hub.

Milken Institute · Mexico City
Five event spaces at the Four Seasons Mexico City run as one technical production, briefed through a UK-based agency.
Briefed by a UK agency for Milken Institute. Technical production by Castelein AV.

ITP Aero · Querétaro, Mexico
A hybrid All Hands on an aerospace plant floor: 125 people in the room and more than 1,500 colleagues on Teams in four countries.
Turnkey production by Castelein AV for ITP Aero.
Send us your brief
Share what you know so far: dates, city, venue, audience and what the production has to do. Unknowns are fine. We reply with questions or a scope-based proposal.