TVSync
Perfectly synchronized YouTube TV playback for Lethal Company multiplayer.
About this mod Author’s original text
TVSync - Synchronized TV Playback
A Lethal Company mod that provides perfectly synchronized YouTube video playback on the ship television for all players in multiplayer.
Fork of YTTV / Television Controller with a complete rewrite of the networking layer.
Features
- Host-authoritative playback - the host controls everything; clients mirror the host state
- Drift correction - periodic sync broadcasts keep all clients within 150ms of the host
- Ready-check system - playback doesn't start until all players have downloaded and prepared the video
- Late join support - players joining mid-video automatically sync to the current position
- Pause/Resume/Seek/Stop/Restart - all synchronized across all players
- Client-side volume - each player controls their own volume independently
- Position memory - optionally remembers position when toggling TV off/on
- Multi-language - English and Russian support
Commands
| Command | Description |
|---------|-------------|
| /tplay [URL] | Play a YouTube video (host only) |
| /ttime [TIME] | Seek to timestamp, e.g. 1:30 or 1:02:30 (host only) |
| /treset | Restart from beginning (host only) |
| /tpause | Pause playback (host only) |
| /tresume | Resume playback (host only) |
| /tstop | Stop playback entirely (host only) |
| /tvolume [0-100] | Set your local volume |
| /tposition [true/false] | Toggle position memory |
| /thelp | Show help |
How Sync Works
- Host receives /tplay command
- Host broadcasts the URL to all clients
- Each client downloads and prepares the video independently
- Each client reports "ready" back to the host
- Host waits until all clients are ready (or timeout expires)
- Host picks a future network timestamp and broadcasts "start at time X"
- All clients begin playback at exactly the same network moment
- Every 3 seconds, host broadcasts its current playback position
- Clients compare and apply drift correction (speed adjust or hard seek)
Installation
Drop the TVSync.dll into BepInEx/plugins.
The mod will automatically create a TVSync/ folder in your game directory with language files and yt-dlp.
Configuration
Config file: BepInEx/config/TVSync.cfg
- Language - en or ru
- DriftThresholdMs - max drift before correction (default: 150ms)
- SyncIntervalSec - how often host broadcasts sync (default: 3s)
- ReadyTimeoutSec - max wait for all players (default: 30s)
- MaxSeekThresholdMs - drift above this does hard seek (default: 500ms)
Credits
- Original: KoderTech (Television Controller)
- Fork: TheByteNinja (Television Controller Fix)
- Fork: MAR-Mods (YTTV)
- Sync rewrite: whelve13 (TVSync)
AI was used in the process of rewriting.
Install & use Install: BepInEx plugin
- The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
- Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
- Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
- Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.
Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.
Install these first, or the mod will not work: