Indeed but I'm laid up so I'm using a smart TV. Ok though Jet2 appear to have now stopped that one annoying advert.

AdGuard is the only ad blocker for TV. It's a unique app that blocks ads and trackers, filters DNS requests, and secures your TV traffic. Plus, AdGuard is the only Android TV app that allows you to use encrypted DNS, which greatly increases the security of DNS requests.

Thats what i'm using and it works.

adverts that the youtuber themselves advertise in their videos

That is not a big issue as one can always fast forward those bits, unlike YT's own adverts which you can't skip.

It depends upon the platform you're watching the videos on. If you're using a web browser on a PC (and I can only comment about Firefox here, which is what I use), then there's a decent chance you can block all but the video's own in-video ads, via using ad and/or cookies blocker add-ons like UBlock Origin and Ghostery.

I never get such ads when watching YT videos this way, but I do get them if I watch the same via the YouTube app on my (Android) tablet or mobile phone.

For a time (about a year or so ago), YT had its own anti-ad-blocker blocker (!) to stop this (via warnings and X goes until you can't watch YT videos via the website unless you switch off the add-on blockers), but it appears either they dropped it after complaints or the cooker or ad-blocker add-ons got round it. Such issues have yet to re-occur.

The annoying ads are those I'd never, ever spend my money on, and yet they keep being shown. At least, most of the time (not so good around Christmas, for obvious reasons), you can skip the rest of the ads shown on the app version after a few seconds, except ones advertising paid-for YT services.

If it's an in-video one by/for the content creator, then I suppose you can jump forward manually to miss 95% of the ad.

YT had its own anti-ad-blocker blocker

I read somewhere Google dropped the idea as it made more people use ad blocker.

Only ~10% of web users use ad blocker so 90% of population still see ads.

Funny that YT charges advertisers and then offers viewers premium plan to not show those ads. They win either way ;-)

Rather like the ads themselves with the 'Skip' function - you skip, and YT probably takes a bit of money for the 5-20 sec of ad they do show, but I bet the YouTuber content creator gets no cut of it; watch the whole ad, and YT gets 99% of a much larger amount that then goes into (for me at least) more of their ideological r****** 'other work', censorship efforts and behind closed doors politicking.

Blocking ads a non issue in computers but in mobile or devices like Fire TV there is no easy option without doing some serious hacking - which most can't/won't do. Also, as Google knows people are watching in TV (large screen) they show even longer non-skippable ads!

I'm glad my TV is a 'vintage' LCD one - no digital tuner, no 'Smart' functions, essentially, since the switchover to DTV, just a 'dumb' monitor to view stuff through the PVR or Blu-Ray player.

Brave browser works fine in tablets so watching YT via browser is good option instead of using native YT app.

Never came across that one before. I could watch YT via my Firefox app like my PC, though even that may not stop the ads (despite having both uBlock origin and Ghostery as add-ons installed) as it looks like a cut-down version of the PC one, despite that (for me running very old Win7) now being the 'legacy' version of Firefox that hasn't been updated for about a year now.

A lot of my tech (and my car) is getting long in the tooth now, but mostly still works perfectly fine (for the moment - some remote controls of mine cannot be replaced [even by universal / cheapo knock-offs] except some via eBay with good condition/ low-used originals), without all the grumbles of the overly complex hardware and software that is prevalent today.

I miss the good times of the 1990s and early 2000s. :-(