Every Universal TV in the house appears in one app, and switching rooms is one tap. The detail that matters: each platform speaks its own protocol on its own port — Tizen on 8002, webOS on 3001, Roku ECP on 8060, Google TV on 6466 — which is exactly why one app has to handle six of them.
Samsung living room. LG bedroom. Roku kitchen. Switch between any brand, any room, in one tap—free.
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Six platforms, six different conversations
"Universal" is doing real work here. A smart TV does not speak one language — each platform has its own protocol, its own port and its own idea of whether a phone needs permission before it is trusted. This is the whole matrix in one place.
| Model line / series | TV operating system | How it is controlled over the network | Pairing | On-set button |
|---|---|---|---|---|
| Samsung | Tizen | WebSocket over HTTPS on port 8002, found by SSDP | Accept the prompt on the TV screen | Jog controller, rear panel bottom-right |
| LG | webOS | WebSocket over HTTPS on port 3001 | PIN shown on screen | Joystick nub, bottom-centre under the logo |
| Sony, Panasonic (EU), Sharp, TCL Q-Class | Android TV / Google TV | Android TV remote protocol over TLS, ports 6466/6467 | 6-digit PIN on screen | Varies by brand and model year |
| Roku, TCL numbered series, Philips (US), JVC, RCA, Sanyo, some Hisense | Roku OS | Roku ECP — HTTP on port 8060, found by SSDP | None on most units | Single button, underside or rear |
| Fire TV Stick, Toshiba (US), Insignia, Panasonic (US) | Amazon Fire TV | Local HTTP, found by mDNS (_amzn-wplay._tcp) | 4-digit PIN on screen | Varies — a stick has none at all |
| Vizio | SmartCast | HTTPS on ports 7345 and 9000, found by SSDP/DIAL | 4-digit PIN on screen | Discrete buttons, rear corner |
Two things are true of every row: the traffic stays on your local network, and none of it is infrared. A TV that has no network stack at all cannot be reached from a phone by any of these routes.
Reaching the menu with no remote
Samsung uses a jog stick on the rear bottom-right, LG a nub under the centre of the panel, Vizio a stack of plain buttons in a rear corner, Roku TVs a single button that opens the Input List when the set is already on. Sony does not standardise it at all. A streaming stick has no button whatsoever.
Only Samsung’s jog controller and LG’s nub reliably navigate an on-screen menu. On the rest, the network menu wants a remote or a paired phone — and Ethernet into the LAN port is the way through first-time setup when you have neither.
Known Universal TV failure mode
When some sets appear and others do not, the cause is rarely the app. Discovery relies on multicast — SSDP or mDNS depending on the platform — and routers routinely drop it: AP or client isolation, a guest SSID, a mesh that puts devices in separate segments, or IGMP snooping configured badly.
What helps: Put every device on the same SSID rather than a guest network, and turn off AP or client isolation. Where the platform allows it, entering the TV’s IP address by hand bypasses discovery entirely.
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Auto-Discovery. Zero Config.
Control multiple Samsung, LG, Sony, Roku, Vizio, and other brands units from one iPhone app. All Multi-Platform TVs on your Wi-Fi network are discovered simultaneously via SSDP / mDNS — switch between rooms with a single tap. Each TV connects via WebSocket HTTPS / HTTP REST / Protobuf TLS. No subscription, no separate apps per room — one free Universal remote app covers every TV in your home.
How it works
Install the Universal TV Remote app for free. One app for Samsung, LG, Sony, Roku, Vizio, and 50+ other brands.
Make sure your phone is on the same Wi-Fi network all your TVs are connected to.
The app auto-discovers all smart TVs on your network regardless of brand. Name each by room.
Tap Living Room, Bedroom, or Kitchen to instantly control that TV. No re-pairing, no extra fees, ever.
FAQ
Specific answers for Universal TV users — including which Universal lines run which system.
Yes. Our free Universal remote app discovers all Samsung, LG, Sony, Roku, Vizio, and other brands units on your Wi-Fi network simultaneously using SSDP / mDNS. Every TV appears in the device list — tap to switch between rooms instantly. Each connection uses WebSocket HTTPS / HTTP REST / Protobuf TLS. Requires Varies by TV brand per TV on the first connection. No separate apps per TV, no subscription, and no limit on the number of TVs you can add.
All Samsung, LG, Sony, Roku, Vizio, and other brands units on the same Wi-Fi network are discovered automatically via SSDP / mDNS and appear in the app's device selector. Tap any to switch control instantly — the app maintains connections to all Multi-Platform TVs simultaneously so switching is immediate with no re-pairing delay. The app prompts you to complete Varies by TV brand per TV on the very first connection only. Each subsequent connection is instant.
Our free Universal remote app supports multi-room control with no additional cost. All Samsung, LG, Sony, Roku, Vizio, and other brands units on your home network are discovered simultaneously via SSDP / mDNS. You select individual TVs from the device list — no simultaneous broadcast mode, but switching between TVs is instant. Each TV connects via WebSocket HTTPS / HTTP REST / Protobuf TLS. Requires Varies by TV brand per TV on first launch. No subscription, no account, no limit on TV count.
One per platform — SmartThings, ThinQ, the Roku app, the Fire TV app. Every platform ships its own: SmartThings for Samsung, ThinQ for LG, the Roku app, Amazon’s Fire TV app, the Google TV app, SmartCast for Vizio. Each covers exactly one of the rows above, which is the practical case for a single app that covers several.
Samsung uses a jog stick on the rear bottom-right, LG a nub under the centre of the panel, Vizio a stack of plain buttons in a rear corner, Roku TVs a single button that opens the Input List when the set is already on. Sony does not standardise it at all. A streaming stick has no button whatsoever. Only Samsung’s jog controller and LG’s nub reliably navigate an on-screen menu. On the rest, the network menu wants a remote or a paired phone — and Ethernet into the LAN port is the way through first-time setup when you have neither.
When some sets appear and others do not, the cause is rarely the app. Discovery relies on multicast — SSDP or mDNS depending on the platform — and routers routinely drop it: AP or client isolation, a guest SSID, a mesh that puts devices in separate segments, or IGMP snooping configured badly. Put every device on the same SSID rather than a guest network, and turn off AP or client isolation. Where the platform allows it, entering the TV’s IP address by hand bypasses discovery entirely.
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