A player app on the TV or an attached device connects to your provider, pulls down the channel list, and separately pulls an EPG feed that tells the app what's scheduled to air and when. None of that runs through the TV's antenna or tuner input, since there isn't a broadcast signal involved anywhere in the chain. If the list looks wrong or outdated, the fix is usually refreshing the playlist inside the app itself, not adjusting a TV setting, since the TV is just the screen the app happens to draw on.

Player apps hold the entire channel list in memory while they're running in the background, and performance starts to degrade once a list gets very large — apps commonly destabilize somewhere above roughly 18,000 visible channels loaded at once on a single device. Hiding groups you don't watch is a genuine fix, not a cosmetic one, because it directly cuts down what the app has to keep loaded and rendered on screen at the same time. TiviMate's group-hiding and favorites features exist specifically to solve this exact problem for people with large provider lists.

1. 1Apps commonly destabilize above roughly 18,000 visible channels
2. 2Hiding unused groups reduces what stays loaded in memory
3. 3Favorites and multi-playlist support organize large catalogs

A Firestick, Roku, Apple TV, or Android TV box running a dedicated player app tends to be noticeably more stable than a TV's built-in app store, since those devices get more frequent app updates and generally more consistent performance over time as software matures and bugs get fixed by the developer. IPTV Smarters and TiviMate are both built specifically for this kind of setup and support things like favorites lists and hiding unused channel groups, which matter more and more as your channel list continues to grow over months of regular everyday use.

Two changes help more than anything else you can try on your own without calling support: set the player's buffer to none rather than a longer hold, and point your device at a public DNS resolver instead of your router's default one. Neither setting fixes a genuine provider-side problem sitting further upstream, so if buffering persists across every single channel on every app after trying both changes carefully and giving them a fair, patient test over a few days, the fault is more likely with the provider than with your own device or home network setup.