The big screen is where YouTube gives you the least control. You can't install an extension on a TV, and there's no channel blocklist in the app. But you're not out of options — here's what actually works on YouTube TV and smart TVs in 2026.
What you can and can't do on a TV
On a smart-TV YouTube app (or a streaming stick), your only native levers are:
- "Don't recommend channel" via the three-dot menu on a video — a weak, temporary signal.
- A restricted or kids profile for parental filtering — broad, not per-channel.
There is no per-channel blocklist on TV, and because TVs can't run browser extensions, you can't add one. So how do you actually reduce a channel on the big screen?
The account-level trick
Here's the key fact most guides miss: "Don't recommend channel" is attached to your Google account, not to one device. Whatever you train on one signed-in device follows the account everywhere — including your TV.
So the reliable approach is to do the work where you have control — a desktop browser — and let it propagate:
- On desktop, block or "don't recommend" the channels you don't want.
- As long as your TV is signed into the same Google account, YouTube recommends those channels less on the TV too.
It's a reduction, not a hard block — but it meaningfully cleans up the big-screen feed without touching the TV at all.
Automating it with Blokari
Doing this by hand, channel by channel, is slow. Blokari automates the desktop side: as it blocks channels (your own picks, or whole curated categories like propaganda, AI farms, clickbait, gambling), it can automatically send YouTube's "Don't recommend channel" signal for them. That account-level training is what reaches your TV.
So the practical setup for a cleaner TV feed:
- Install Blokari on a desktop browser and enable the categories you want gone.
- Let it hide them on desktop and train your account.
- Sign your TV into the same Google account.
- Over the following days, those channels fade from your TV recommendations too.
For kids on the TV
If the goal is child safety on the big screen, combine a restricted/kids profile on the TV (the strongest on-device control) with Blokari's free parental categories trained on desktop. Together they cut far more than either alone. See the free parental controls guide.
Bottom line
You can't install a blocker on a TV — but you don't have to. Train your Google account on desktop, keep the TV on the same account, and the unwanted channels quietly recede from the big screen too.
FAQ
Can you block a channel on a smart TV's YouTube app?
Not with a real blocklist — smart-TV YouTube apps only offer "Don't recommend channel" via the three-dot menu and parental filtering through a restricted profile. There's no per-channel block on TV, and browser extensions can't run there.
How do I reduce unwanted channels on my TV then?
Because "Don't recommend channel" is tied to your Google account, train it on a desktop browser (manually or automatically with Blokari) while signed into the same account. The reduction carries over to your TV — those channels get recommended less on the big screen too.
Is YouTube TV the same as YouTube on a smart TV?
No. "YouTube TV" is a paid live-TV streaming service; "YouTube on a TV" is the regular YouTube app on a smart TV or streaming stick. Neither offers a per-channel content blocklist; both respond to account-level recommendation training.
What about kids watching on the TV?
Use a restricted/kids profile or YouTube Kids on the TV for the strongest protection, and reinforce it with account-level training done on desktop. Blokari's parental controls handle the desktop side for free.