Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Re: What are the best free channels to have on Roku?
That's far too much of a personal decision. There are many channels that offer free content, usually with advertisements. The Roku Channel is of course a major consideration. YouTube has a enormous amount of content, but quality is all over. But there is some outstanding things to be found there.
Beyond that, it's really going to depend on your tastes and interests.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.