ROKU -- if you have one, please explain how it works.
I'm afraid my senior citizen-hood is showing because of my techie ignorance.
On election night, we were at a friend's home and he used Roku to switch among television stations. t looked cool, but we were too involved in the returns to ask how it worked, whether you had to subscribe to the various services, whether it needs to have a computer attached, whether it delivered all the local channels as well as things like CNN and Fox News, etc.
I am not even clear on how it works compared to just using cable.
We have a Chromecast thingie, but it just projects things from the computer like you tube videos and Amazon programs to the television.
If you have Roku and understand it, can you please help??
Thank you for your wisdom.