A full VPN tunnel encrypts every packet leaving the house and taxes whatever device does that encrypting; Smart DNS touches exactly one thing — the lookup that tells your TV which server to talk to — and leaves the rest of the connection alone. That's the whole reason an eight-year-old smart TV can get its regional channel back without turning the home network into a science experiment. Smart DNS, not the VPN itself, is what actually fixes this particular streaming-setup problem, and after running a dozen-plus VPN subscriptions through their paces, that one distinction turned out to matter more than any single review verdict.
Quick disclosure since money changes hands here: a few of the links below, including the ones pointing at CyberGhost VPN, are affiliate links, and I earn a commission if you subscribe through them at no extra cost to you. Everything mentioned is a service I've paid for out of pocket and configured myself on hardware in my own house. None of it is secondhand marketing copy.
An Old Smart TV Has Become Legacy Hardware in the Living Room
Panels last longer than software does. A recent MacBook Pro or a current Windows 11 box gets to run a real VPN client because someone actively maintains an app for it; an older smart TV usually runs a proprietary, half-abandoned OS like Tizen or an early build of webOS with no VPN app store at all, and no update is coming to fix that. Sticking a VPN client at the router would solve the app-store problem outright — every device on the network inherits it — but that's a broad-strokes fix for a narrow problem, and it comes with its own drop in local network speed.
The Mechanics of a Smart DNS Redirect
Encryption overhead is what makes a VPN feel slow — anyone who's fought a sluggish corporate VPN at work already knows that in their bones. Smart DNS skips the overhead entirely because it never touches encryption at all. It just redirects your Domain Name System queries so the TV's request looks like it's coming from a different region, the networking equivalent of changing the return address on an envelope without touching what's inside it. I've watched a proper DNS leak test come back clean before — every resolver line reading back as VPN infrastructure instead of my ISP's — and that exact swap, a different resolver quietly answering the query instead of the real one, is precisely what makes Smart DNS work; it's just doing on purpose, for one narrow use case, what would count as a leak anywhere else.
None of that makes Smart DNS a privacy tool. Your traffic sits there in the open the entire time, visible to your ISP and anyone else positioned to see it, which is fine for a TV that just wants a regional sports feed and a bad trade if what you actually care about is hiding what you watch. Scoping the fix to the actual threat is the better move here, the same argument from how to build a personal threat model: the tool should match what you're defending against, not the most powerful option on the shelf.
How Do You Actually Turn This On for an Ancient TV?
Setting this up on CyberGhost VPN came down to a per-device DNS activation in their web dashboard rather than a router-wide change — whitelist the TV's IP address, grab the DNS addresses they generate, and type them into the TV's manual network settings. Typing a long DNS string with a decade-old plastic remote is its own small tax on patience, but it's a one-time cost. Their long-term plan is about as inexpensive as a major VPN brand gets, they back it with a 45-day money-back window that runs longer than most competitors offer, and the servers are labeled by use case rather than left as a flat country list, something covered in more depth in my piece on dedicated servers for streaming. The simultaneous-device allowance is generous enough to cover a desk full of dev gear plus a living room full of legacy electronics without anyone getting bumped off.
Stress-Testing the Setup Beyond the Happy Path
Not every VPN-adjacent product survives contact with an old TV, or with anything else for that matter. A bundled VPN that came free with an antivirus suite once looked like the easy answer, right up until it dropped throughput by roughly 80 percent on a gigabit line. You could hear a laptop fan spin up the moment the connection stalled on a handshake, a good few seconds before the speed test even finished confirming what had gone wrong. That's the kind of result that makes you stop trusting "VPN included" as a bullet point on a security suite and start testing things individually instead.
Real stability shows up under boring conditions, not dramatic ones. The genuine test is whether the setup survives a firmware update the TV pushes on its own — those updates have a habit of quietly wiping custom network settings — and whether someone can switch from one streaming app to a regional one without anyone needing to get up and fix anything. A reader named Darby Kuang, who's emailed in a few times over the years and works remotely for a fintech company, put it well describing their own home setup: better something boring and durable than clever and fragile, which tracks with a threat model that's actually been thought through instead of assembled from whatever a forum thread recommended that week.
NordVPN, ExpressVPN, and Surfshark: How They Stack Up for This One Job
NordVPN wins outright on raw throughput in my speed tests on my main rig — NordLynx is consistently the fastest protocol I've clocked — but its Smart DNS configuration feels built with a modern streaming box in mind rather than a TV running an operating system from a decade ago. ExpressVPN earns its reputation as the option that just works, with apps that behave identically across every platform and a genuinely strong record unblocking region-locked content, though it's noticeably pricier at every tier than the alternatives, and once you run the long-term subscription math on a secondary use case like an old TV, that gap is hard to justify.
Surfshark deserves credit too — unlimited simultaneous devices is a genuinely useful perk in a house with more screens than people, and CleanWeb strips ads and trackers at the DNS level, a nice bit of overlap with what this whole setup is already doing anyway. The catch is support: the couple of times I needed a human during a busy stretch, responses dragged noticeably, and a subscription that looks cheap on day one has a habit of climbing hard the moment the introductory period ends.
So Should You Bother With Smart DNS at All?
Use Smart DNS when the only problem is convincing a device it's somewhere it isn't, and skip straight to a full VPN — ideally configured at the router — when the goal is also hiding the traffic itself from whoever's watching the connection. Those are two different jobs, and paying the encryption tax for a TV that will never need it is wasted effort. Building a custom mechanical keyboard from scratch is a hobby some people commit to with real obsession (a friend of mine swaps switches on his about as often as other people rotate tires), and Smart DNS on an old TV deserves roughly that same level of fuss: set it up once, correctly, and stop tinkering with it.
An old TV staring back with a blank regional error doesn't need to be replaced just to fix that. Smart DNS is a genuinely low-cost way to keep it useful without adding complexity everywhere else in the house. Trading privacy for performance on this one device is a fair trade if you go in understanding exactly what you're giving up, and if that trade works for you, CyberGhost VPN is the version of this setup that took the least fiddling to get right.