Why is YouTube stopping repeatedly for me? Is it possible I've corrupted it on my devices?

[UTUSN]

About six months ago I got around to discovering the YouTube universe of all the fascinating things available.

Yes, at this late date I learned how to Cast from my phone to the Smart t.v. and from the phone to the non-Smart t.v. via Roku. And I've gone to town, especially on weekends, hours on end.

So this morning, it hasn't been a matter of *one* video stopping and "loading" repeatedly, but ALL of the ones I've played.

So far I've only used the Smart tv this morning. I'm going to turn off the phone, which I'm told we're supposed to do once per week and never do, to see if that's something.

Any explanations or suggestions? tia.