Huh. 98% of my youtube consumption is on either TV or phone apps at this point, though, so they really wouldn't have a place to put something like that. Or maybe they would and I just haven't watched anything that would have it. Who knows.
Paramount Plus definitely likes shoving a 30 second ad before your show even on the ad-free plan, though...
RTGs are still used for outer solar system missions. Not enough light for solar panels. Hell, even the Perseverance Mars rover, which was launched in 2020, has an RTG.