How to run a promo video on your booth screen

For one promo video that will not change during the show, start with a USB drive in the TV if the exact display can play and loop your file. If USB playback is unavailable or awkward, use a dedicated player and keep the laptop free for demos.

Whichever method you choose, carry a second path that does not depend on the same player, account, or network. A sophisticated primary setup with no fallback is less useful than a plain local video that another teammate can restore quickly.

Choose by the job, not by the gadget

The important distinction is not whether the player is a stick, box, laptop, or built-in app. Decide whether the screen only needs to repeat one fixed video, whether staff must switch content during the day, and whether someone away from the booth must be able to update it.

Method	Best fit	Internet needed during playback?	Main weakness
USB drive in the TV	One unchanged loop	No	File and looping support vary by TV
Dedicated media player or mini computer	Long-running local playback	Usually no	Another device to configure and power
Laptop over HDMI	Supervised playback and presentations	No for a local file	Occupies the laptop and exposes interruptions
Android TV stick or box	Compact dedicated playback	Depends on the player app	More setup than a USB drive
Digital signage platform	Remote updates, playlists, and schedules	Usually for updates; offline behavior varies	More accounts, configuration, and dependencies
Phone or tablet over HDMI	Compact backup or short supervised use	No for a local file	Adapter, battery, and notification risks
Wireless casting	Quick, supervised playback on a controlled network	Usually yes, or at least a working local network	Network discovery and reconnection
Display’s built-in browser or signage player	A known display with suitable built-in tools	Depends on the content	Highly model-specific behavior

This guide covers normal looping promo content, not color-critical production, synchronized video walls, or a scheduled stage presentation. Those jobs deserve an AV plan with equipment and support matched to the event.

Prepare one file that can survive a fallback

Before choosing a player, make a local copy of the final video and test it from beginning to end. An MP4 file with H.264 video and AAC audio is a sensible compatibility starting point, but it is not universal; the display or player manual and a test on the actual equipment take priority.

Design the video to make sense with the sound muted. Exhibition halls are noisy, repeated audio can become unpleasant for neighboring booths, and a screen that depends on narration will lose its message whenever the volume is turned down.

Check the loop transition as well as the video itself. A long black frame at the end, a visible player control bar, or a menu that appears between repeats will be much more noticeable after the clip has run for an hour.

Method 1: play the video from a USB drive in the smart TV

Copy the final file to a USB drive, connect it to the TV, open the TV’s media player, and select repeat or loop. Do this on the exact TV model when possible, because supported file systems, codecs, resolutions, and repeat behavior vary even between displays from the same manufacturer.

Ask a rental supplier for the model number and remote control before the show. Without the remote, selecting the USB source or changing repeat settings can be much harder than the phrase “play it from USB” suggests.

Pros

• No laptop, extra video cable, or venue internet is required.
• The playback path has very few parts and packs into a pocket.
• It makes a strong independent fallback for a more elaborate setup.

Cons

• Compatibility and loop controls are specific to the TV model.
• Some players show file browsers, controls, or a pause between loops.
• Replacing the video requires physical access to the drive and another compatibility check.

Use it when: the screen has one job and the exact file has passed a complete loop test on that display. If the rental company cannot confirm USB playback, treat this as a possible fallback rather than the only plan.

Method 2: use a dedicated media player or mini computer

A compact media player, mini PC, or small single-board computer can sit behind the screen and send video over HDMI. Store the file locally, configure the player to open it full-screen and loop, then test what happens after the player and TV lose power together.

This method is useful when the TV’s own USB player is limited but you still want local playback without occupying a staff laptop. The device is only “dedicated” if it starts predictably and the booth crew knows how to restore it; an unfamiliar desktop hidden behind the TV is not automatically reliable.

Pros

• Keeps content local and leaves staff computers available for other work.
• Offers more control over formats, playback software, and startup behavior than most TV media players.
• Can support a playlist, images, or a web page as the screen plan grows.

Cons

• Adds a power supply, HDMI cable, operating system, and player software.
• Auto-login, sleep, updates, and launch-on-startup need deliberate configuration.
• A keyboard, mouse, remote, or documented recovery method may be needed when it stops at a menu.

Use it when: the video must run for hours with little attention, USB playback is unsuitable, and the team can prepare the device before travel. Pack its power supply and controls together so the player arrives as one recoverable kit.

Method 3: connect a laptop with HDMI

Connect the laptop to the TV with HDMI or a tested USB-C adapter, select the correct display input, and run the local file in a player with full-screen and repeat enabled. Disable sleep, screen savers, notifications, and automatic interruptions for the show window, then decide whether mirroring or an extended desktop gives the operator the safer arrangement.

The laptop is often the fastest route when a person will supervise the screen or switch between a promo loop and a live presentation. It is a poor unattended default when the same laptop is promised for demos, lead work, or private messages.

Pros

• Uses familiar hardware and makes last-minute file changes straightforward.
• Handles most common video formats and can switch to slides, a browser, or a live demo.
• Troubleshooting is visible instead of hidden behind the display.

Cons

• Ties up a valuable booth device and creates competition with live demos.
• Notifications, sleep, low battery, updates, and accidental window changes can appear on the public screen.
• Adapters and long HDMI cables add connection points that can be bumped or forgotten.

Use it when: a booth teammate will operate the screen, or the content must move between video and a live presentation. If the laptop is also the demo machine, keep a USB loop or dedicated player ready before the first visitor asks for a demo.

Method 4: use an Android TV stick or box

An Android TV or Google TV device can run a local media-player app, a kiosk browser, or a signage app while remaining small enough to mount behind the screen. Configure the app, looping, sleep behavior, and startup path in advance, and use the device’s supplied power adapter instead of assuming the TV’s USB port can power it consistently.

This category sits between a simple USB drive and a general-purpose mini computer. It can be compact and dedicated, but the home screen, app permissions, account login, remote, and network setup are all part of the playback path.

Pros

• Small, inexpensive to transport, and does not occupy the demo laptop.
• Can play local files or run browser-based and digital-signage content.
• A remote makes basic recovery easier than reaching behind the TV for a computer.

Cons

• First-run prompts, app updates, sleep settings, and home screens can interrupt playback.
• Local storage and file transfer are usually less convenient than on a laptop.
• Cloud or browser playback may add a network dependency that a local player would avoid.

Use it when: you want a compact dedicated player and are willing to configure it as booth equipment rather than as a living-room streaming device. Test a cold start with only the packed remote and instructions available.

Method 5: use a digital signage platform

Digital signage software manages what a player shows; it does not remove the need for player hardware. The screen might run the platform through an Android TV device, a mini computer, a supported smart-TV app, or a full-screen browser, while a web dashboard controls playlists and updates.

This is worthwhile when the promo video is part of a changing playlist, someone needs to update the screen remotely, or the same setup travels to several events. Booth Beam is one option built around trade-show screen content and can run through a full-screen browser on an Android TV device or computer. It is relevant when remote playlist changes and mixed content solve a real booth problem; it is unnecessary overhead for one unchanging MP4 that a TV already loops well.

Pros

• Lets an authorized teammate change playlists without handling the TV or USB drive.
• Can mix video with images, web content, schedules, or event-specific screens.
• Keeps the playback device dedicated while content is managed elsewhere.

Cons

• Adds an account, player setup, permissions, and sometimes a subscription.
• Internet, caching, and recovery behavior differ between platforms and player apps.
• A blank login, pairing, or browser page may appear after a restart if kiosk startup is not configured.

Use it when: content must change during the event, several screens need coordinated updates, or the screen has jobs beyond one video loop. Confirm exactly what remains on screen during a network outage and keep a local USB video as an independent fallback.

Method 6: connect a phone or tablet with a cable

A phone or tablet can play a local file through a compatible HDMI adapter or dock. Put the device in a mode that suppresses calls and notifications, connect external power if the adapter supports it, lock the intended orientation, and test whether the player loops without showing controls.

This can be a useful compact backup because it avoids venue Wi-Fi and may already travel with the team. It is less attractive as the all-day primary path when that device is also needed for lead capture, calls, authentication, or photographs.

Pros

• Small and capable of playing a local file without internet access.
• Useful when a laptop fails or is urgently needed elsewhere.
• Touch controls make supervised changes easy.

Cons

• Video output support and adapter compatibility vary by device.
• Battery, heat, orientation changes, calls, and notifications need attention.
• The phone or tablet becomes unavailable for its normal booth duties.

Use it when: you need a supervised backup or a short playback session and have tested the exact adapter, charger, and device. Do not buy an adapter on show morning and assume every USB-C port outputs video.

Method 7: cast wirelessly from a phone or laptop

Wireless casting can send a video or browser tab to a compatible TV or receiver without an HDMI cable. It works best on a network you control, with the sender and receiver already paired and a wired or local-file fallback within reach.

Many casting systems require the sender and receiver to share a working local network, and venue networks can complicate device discovery or reconnection. Casting also leaves a control device in the operational chain, so it rarely reduces risk compared with local playback at the screen.

Pros

• Reduces the need to route a video cable across the booth.
• Makes it easy to start supervised content from a familiar phone or laptop.
• Can be convenient for an impromptu clip or short presentation.

Cons

• Depends on network discovery, pairing, and continued access to the sending device.
• Reconnection after power or Wi-Fi loss can require several visible steps.
• Notifications, battery state, and staff walking away with the sender can disrupt the plan.

Use it when: the playback is supervised and the team controls the local network. Do not make venue Wi-Fi plus wireless casting the only route to an all-day promo loop.

Method 8: use the display’s built-in browser or signage player

Some smart TVs and commercial displays can open a web page, install a playback app, or run scheduled content from an integrated signage system. If the rental supplier offers this, ask for the exact model and setup procedure rather than planning around a generic “smart TV” label.

Integrated playback can remove a box and an HDMI cable, but it moves the risk into model-specific software. Test full-screen behavior, login persistence, sleep, startup after power loss, content updates, and the controls available to booth staff.

Pros

• Requires no separate player hanging behind the screen.
• May support scheduled startup, playlists, or remote management on suitable commercial displays.
• Can make a permanent or repeatedly rented installation tidy.

Cons

• App availability and behavior vary widely by model, region, and software version.
• Entering URLs or credentials with a TV remote can be slow during setup.
• A rental substitution can invalidate the entire prepared workflow.

Use it when: the exact display is confirmed early and its built-in player passes the same tests as an external device. Avoid it as the sole plan when the supplier reserves the right to provide an “equivalent” TV model.

Test the complete path, not just the video

Run the final content on the player, cable, adapter, and display you intend to use. Let the loop repeat several times, then remove power from both player and screen, restore it, and give a teammate the remote and a short recovery card.

The booth screen playback test provides a repeatable way to compare normal startup, power loss, signal loss, network loss, and teammate handoff. Add every required player, remote, power supply, cable, adapter, and offline file to the conference booth packing checklist only after that complete path works.

A practical recommendation

For a single fixed promo loop, use tested USB playback as the primary method when the TV supports it. If the screen must run unattended, the TV is unknown, or the content changes during the day, give the screen a dedicated player; add a digital signage platform only when remote management or mixed content earns the extra setup.

Reserve the laptop for supervised presentations and live demos, and treat wired mobile playback or casting as situational options rather than default all-day systems. Whatever sits behind the screen, keep one simple local video on a USB drive and pack the supporting pieces together using the booth cable bag guide.