Four TVs that need their own playlists or their own hours get one signage player each. A single player feeds one screen; a splitter mirrors one picture to all four; a four-output commercial box concentrates every cable and every fault at one rack. Buy one per screen unless all four signs play the same loop on the same daily schedule over short HDMI runs.
One player per screen is the answer for four TVs that need their own playlists or their own on and off hours. A standard signage player drives one screen from one HDMI output. One box serving four screens is possible in three ways, and two fail most jobs: a splitter shows the same picture on all four, and a video wall processor cuts one image into pieces. The third, a commercial player with four independent outputs, works but parks every cable and every fault at one rack. This page compares the two setups worth buying, one player per screen and one four-output box, with the schedules, cable runs and weekly update counts that decide it.
What one player can feed
A standard signage player has one HDMI output, and one output drives one screen at that screen's native resolution, 1920 x 1080 on a 1080p TV. Serving four screens from one device then needs extra hardware, and the three routes behave differently:
- An HDMI splitter copies the player's single output to every TV. Four screens show one picture, one playlist, one schedule.
- A video wall processor stretches one image across several panels. That builds one big picture, not four signs. The choice between the two is covered in HDMI splitter or video wall processor for two screens.
- A multi-output signage player carries several HDMI ports on one box. Units in this class exist with four outputs, each up to 3840 x 2160. Some play one playlist per output; others repeat a single picture or tile it across a wall. The spec line to check before buying is independent playback per output.
One Android signage player driving multiple displays walks through the splitter and wall routes. If any of the four TVs ever needs its own playlist, those routes drop away and the choice is a four-output commercial unit against four single players.
Scheduling: who turns each screen on and off
Two clocks run a TV sign. The player decides what plays; the panel decides when it lights.
With one box feeding four screens, the content clock is shared: every screen shows the same picture at the same minute, so one on and off time covers all four. Panel power can still differ per TV, because each TV keeps its own timer, or a player that speaks HDMI-CEC can wake and sleep the panels over the HDMI cable. The HDMI-CEC setting that turns screens on explains that link.
With one player per screen, each player carries its own daily on time and off time. A lobby screen can play long into the evening while a corridor screen stops at the end of the office day, and both come from the same management screen with no trip to each TV's menu.
One box or four players, side by side
| Question | One four-output player | One player per screen |
|---|---|---|
| Own playlist per TV | Only if the unit plays independently per output | Yes, by default |
| On and off hours per TV | One shared content schedule; TV timers can differ per panel | Each player holds its own daily on and off time |
| HDMI wiring | All four runs land at one rack; long runs need active cable | The player sits at the screen, so runs stay short |
| What one fault costs | Four dark signs | One dark sign |
| Weekly content updates | One push reaches all four through a cloud CMS | Same push model per screen; card-fed players mean four card pulls a week |
| Adding a fifth screen | A second box once the outputs run out | One more player |
| Wins when | Four screens, one loop, one schedule, short runs | Different content or hours, spread-out rooms, faults that stay local |
The box wins one job: four screens that show the same loop, on the same hours, close enough to one rack that every run stays inside passive copper range. Four players win wherever the screens differ in content, hours or location, and a fault there takes one sign down at a time. A list like yours, graphics only, weekly updates, remote access on four screens, lands in the second group the moment one screen wants its own playlist.
Example: four TVs on two floors
A ground-floor lobby TV, two corridor TVs upstairs and one in the staff room. Graphics only, updated once a week, lights on and off by timer.
One box in the back office: HDMI runs of 6 m, 9 m, 18 m and 22 m to reach the four screens. Passive copper HDMI is commonly kept to about 15 m at 1080p, so two of the four runs need active cable. Opening hours differ, the lobby at 07:00 to 21:00, 14 hours a day, and the upstairs pair at 08:00 to 18:00, 10 hours. TV timers can hold those hours, but the picture is identical on all four, and a player fault at 10:00 darkens four signs.
Four players, one behind each TV: every HDMI run drops to the 1 to 2 m behind the panel. Each player holds its own schedule, so the two opening times come from one management screen. Weekly updates are one push through the cloud CMS to all four; card-fed players instead mean 4 pulls a week, 4 x 52 = 208 card pulls a year. A fault at 10:00 takes down one sign and three keep playing.
Different opening hours, two oversize runs and a fault that should stay local put this job in the four-player column.
What four players ask of the wall
Four players mean four power points at four TV locations, plus a network connection at each screen you update remotely. Where the screen is one of ours, power runs through the DC terminal adapter in the box, the AC adapter is sold separately, and a rail-mount 24 V DC supply suits a cabinet feed; the power and mounting accessories page lists the pieces. One box swaps those four outlets for one rack feed and, on long runs, two active HDMI cables. In a building where every TV already has an outlet behind it, the per-screen setup adds almost nothing to the wall work.
When the screen and the player are one unit
A fourth option ends the argument: a screen with the player inside. Our panel-mount displays are Android units with the software included and no subscription. They play JPG, PNG and WebP images and MP4 video from microSD or USB, keep a copy in internal memory so the show carries on when the card comes out, and take a daily on time and off time; outside those hours the screen shows black at minimum brightness, because the app cannot switch the backlight off. Set the player as the home app and the show comes up full screen at power-on with no launcher and no keyboard; the startup setup for a single-purpose display covers the setting. If the app stops, it is designed to start again within seconds and go back to playing. For a lobby or reception sign smaller than a TV, our lobby displays are built for that, and how much screen a room needs comes from viewing distance in the screen size guide.
Two limits to keep in view: the HDMI port on these units is an output, so a unit cannot stand in for a TV fed by a camera, a PC or a live stream; and where the sign must be a large panel, a TV with its own player stays the right shape.
The decision
Recommendation: put one signage player at each of the four TVs whenever the screens differ in playlist, in on and off hours, in distance from each other, or in how much you need one fault to stay one fault. Look at a single four-output box only when all four screens play the same loop on the same daily schedule and every HDMI run stays inside passive copper range at 1080p, and confirm before buying that the unit plays independently per output. For the job set out here, graphics only, one weekly update, remote management, four screens, that means four players and one push a week through the cloud CMS. If the signs are small enough to drop the TVs, four screens with the player built in close the question for good.
Questions
Can I start with two players and add the other two later?
Yes, and phased buying is easier on the per-screen route. Each screen needs only its own player, power and, for remote updates, a network connection at that spot. Fit two screens now and two when the budget allows; nothing about the first two changes. A four-output box commits you to its output count from day one, so growth means a second box instead of one more player.
Does the signage player turn the TV off at night?
The player decides what is on screen; panel power belongs to the TV. Use the TV's own on and off timer, or let the player sleep the panel over HDMI-CEC if both devices support it. With neither in place, a TV left on the player's black screen burns panel hours every night against the backlight's rated life.
What resolution should the slides be?
Match each playlist to the panel it plays on. A 1080p TV takes 1920 x 1080 slides; a 3840 x 2160 output into that same panel buys nothing on the screen. Build text for the reading distance in the room, and check one slide on the real screen before you publish the set, because a size mismatch shows up as content pinned in one corner.
How do weekly updates reach four card-fed players?
Four cards, four pulls, 208 pulls a year at one update a week. Our player keeps a copy of the show in internal memory, so a screen keeps playing while its card is out for a refresh, and the updated card goes back in the same slot. Networked players skip the ladder entirely: one push, and every screen pulls the new playlist on its next timer.
Planning information, not legal or engineering advice. Rules differ by place: check codes and permits with your local authority and your licensed trades.