Smart TV limits (and why to add a streaming box)
Why the built-in apps on your Samsung, LG, or Sony TV hit walls - and what to do about it.
You can read this if
You can read this if you bought a 4K HDR Smart TV expecting it to handle everything, and have since run into buffering, slow app loading, missing IPTV options, or playback that inexplicably transcodes 4K content the TV can clearly display. This is not a mistake on your part. Smart TV apps have real, specific limitations - and the best fix is almost always to stop using them.
The four problems with Smart TV apps
1. Closed app stores
Samsung uses Tizen. LG uses WebOS. Sony mostly uses Android TV (so that one's fine). Others use variants of Linux-based platforms. Each has its own app store, and only apps built specifically for that platform are available.
What this means in practice: Plex, Emby, and Jellyfin usually have apps. Sometimes they're official, sometimes community-built. TiviMate, Smarters, XCIPTV, Stremio almost never do. If you need any of those, the Smart TV app route is closed.
2. Aging hardware stays on the shelf
The CPU in your 2022 Smart TV is still the CPU in that Smart TV in 2026. Apps get heavier every year. A Plex library that browsed smoothly on day one can become sluggish two years in - the TV didn't change, but Plex did.
External streaming boxes can be upgraded independently of the screen. Your 2022 TV with a 2026 Fire Stick feels brand new.
3. Codec and audio limitations
Smart TV apps typically can't decode TrueHD or DTS-HD MA audio. When playing content with lossless audio, the server has to transcode the audio. On some TVs (especially LG WebOS), audio transcoding forces video transcoding for sync - so even though your TV can display 4K natively, the audio limitation drags the whole stream into transcoding.
The same happens with PGS (Blu-ray) subtitles on most Smart TV apps.
4. Update stagnation
Smart TV manufacturers update their app platforms for maybe three to four years. After that, your TV still works perfectly as a display, but the apps stop getting new features, bug fixes, or codec support. If you bought a 2020 Smart TV, your WebOS apps are probably already being deprioritised.
The fix: add an external streaming box
Keep the TV. It's a display. Use it as one. Then add a proper streaming box:
- Best: Nvidia Shield Pro - direct plays everything including TrueHD Atmos and PGS subtitles
- Budget: Onn 4K Box - full Google TV with Play Store and sideloading
- Mainstream: Fire TV Stick 4K Max (pre-Vega chipset)
- Apple household: Apple TV 4K (but pricey, and no sideloaded IPTV apps)
Tip
A good streaming box costs less than a set of premium HDMI cables. Adding one is the single biggest upgrade you can make to a streaming setup - bigger than upgrading the TV itself for most people.
If you're stuck with the Smart TV app
If you can't add a streaming box (rental property, family member's TV, cost), here's how to minimise the problems:
- 1In Plex/Emby/Jellyfin on the TV: set quality to Maximum / Original.
- 2Pick audio tracks that aren't TrueHD / DTS-HD MA where possible (AC3 or EAC3 are usually fine).
- 3Use SRT subtitles, not PGS, if you can.
- 4Keep the TV firmware updated - manufacturers release app compatibility updates for a few years.
- 5Use Ethernet, not Wi-Fi, if the TV has an Ethernet port. Smart TV Wi-Fi chips are often weak.
A final reassurance
There's nothing wrong with your TV. The panel quality, the contrast, the colour accuracy - that's what you paid for and it's probably excellent. The software layer is the weak part. Swap that out with a good streaming box and your TV becomes the thing you hoped it would be when you bought it.
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