For IPTV, plan on about 10 Mbps per screen for HD and 25 Mbps per screen for 4K, added up for every screen watching at the same time — then leave headroom for everything else in the house. Just as important is stability: a connection that holds 30 Mbps steadily is better for live TV than one that swings between 200 and 5.
Speed needed per stream
| Quality | Per screen | Notes |
|---|---|---|
| SD | 3–5 Mbps | Fine for phones and small screens |
| HD (720p) | about 10 Mbps | Most channels |
| Full HD (1080p) | 15–20 Mbps | Sport looks sharper |
| 4K (2160p) | 25 Mbps or more | Needs a 4K device and source |
For comparison, Netflix recommends 15 Mbps or higher for 4K on its own service; live IPTV benefits from extra headroom because live streams can't buffer far ahead.
Planning for a household
Add up what runs at the same time:
| Household example | Suggested connection |
|---|---|
| One HD TV | 20 Mbps+ |
| One 4K TV | 40 Mbps+ |
| One 4K TV + one HD TV + phones | 60–80 Mbps+ |
| Two 4K TVs + home working | 100 Mbps+ |
Stability matters more than headline speed
Live streams play a few seconds behind what they download. If your connection dips below the stream's bitrate for longer than that, playback pauses. What helps:
- Wired Ethernet to the TV or stick — see Wi-Fi vs Ethernet.
- Consistent evening speeds from your broadband provider — see broadband for 4K.
- Fewer competing downloads during big events.
Speed at the TV, not at the router
Your plan's speed arrives at the router. Walls, distance and interference can cut Wi-Fi speed at the TV to a fraction of that. Always test on the device you watch on — see how to speed-test your TV connection.
Do you need more speed or a better network?
| Symptom | Likely fix |
|---|---|
| Buffering on Wi-Fi, fine on Ethernet | Improve Wi-Fi, not your plan |
| Buffering everywhere, evenings only | Broadband congestion or provider load |
| 4K buffers, HD fine | Not enough speed for 4K at the TV |
| Slow on every device, all day | Upgrade your broadband plan |
Data use
At 25 Mbps, an hour of 4K uses about 11 GB; HD about 4.5 GB. If your plan has a cap, see how much data IPTV uses.
When the numbers check out and you still see buffering, the full buffering checklist covers the rest.
