Easy enough. Smart TV, Roku etc, get Klowd TV app which has OANN.
Ala Carte is where it is at.
You need a pc to get the apps easily.
OAN Plus is available on FREE “Pluto TV”. Use your pc or a ROKU box.
https://pluto.tv/en/live-tv/oan-plus
I use a ROKU box that is plugged into my tv set. I have a network cable from there that goes back to my Motorola MG8702 cable modem/router. You can buy a router separately if you cable modem does not include one. ROKU box I have https://www.roku.com/products/roku-ultra
I have been watching the FREE Pluto tv channel. They have every older show from 1950’s to maybe 10 years ago. https://pluto.tv/en/live-tv/johnny-carson-tv
I pay for Sling tv at $42 a month. You get all of cable and more. I also have Amazons ‘prime video’ as I use Amazon to buy lots of stuff.
I watch quite a bit of Youtube using their app as you can use your pc to quickly find channels you like and click on the subscribe button. Subscribe then go back into the ROKU settings and update and the channel will appear in the Youtube app. You can also group the channels in the order you want.
I use a over the air tv antenna like MOHU and get many extra channels. Check out your area: https://www.tvpassport.com/tv-listings
A quick way to get the apps is to go to google and do a search or you can go to Roku and they will list the more popular ones up front. There are thousands to choose from!
List: https://channelstore.roku.com/browse
Categories. View the top list there: https://channelstore.roku.com/browse/recommended