u/Usual_Farm7617 and u/SiriusFoot already posted my favorite YouTube docs, but if you want a wider selection you can check out https://topdocumentaryfilms.com/. It is a collection of free documentaries on a wide variety of topics. Somehow I still like those YouTube channels better, but its a good site to bookmark. Source: about 1 year ago

• Documentaries:(Find mostly on Hulu, Netflix, or Youtube). Fairly comprehensive list can be found here: http://topdocumentaryfilms.com and archive.org. Source: over 1 year ago

I don't have any off the top of my head but check out this site. Source: over 1 year ago

Topdocumentaryfilms.com you can watch the best documentaries here. Source: about 2 years ago

• Documentaries:(Find mostly on Hulu, Netflix, or Youtube). Fairly comprehensive list can be found here: http://topdocumentaryfilms.com and archive.org. Source: over 2 years ago

"Question 2: I bought two Roku Ultras" - You activate both Rokus on the same account on roku.com. I've had a Roku Ultra for some time and recently bought a Roku Express 4K for the guest bedroom for visiting relatives. When I activated the new Roku on my account it automatically duplicated all my apps on to the new one. But test each app, a few required me to log in on the new Roku. Source: over 1 year ago

Can something similar be done on roku.com? I tried following your steps for this video https://therokuchannel.roku.com/watch/67ca18fb4816521db4f188855569c21e but I noticed the type is not hls but mp4. There was a file that started with index instead of ending with index but much more complex then the sample video used in the example above. Source: over 1 year ago

Did you reset the device & re-set it up on roku.com to be 'owned' by you? Source: over 1 year ago

Certain features will be missing in unsupported countries. You can see our list of supported countries by navigating to roku.com and trying the county selector option at the bottom right hand of the page. Source: over 1 year ago

Easier said than done with an elderly parent, but have your mom go to roku.com, reset her password, and give you the password. Then you should be able to go in and remove any payment method (presumably your PayPal), cancel any subscriptions, etc. Source: over 1 year ago