I suggest using the extension “YouTubeChannel2RssFeed”, with this, you don’t have to manually convert the youtube channel links to RSS feed links.

With YouTubeChannel2RssFeed installed, you can simply use the url: https://www.youtube.com/@somechannel and it will add it as https://www.youtube.com/feeds/videos.xml?channel_id=%7Bid_goes_here%7D.

Edit: Link to extension

I believe what you might be referring to was reported here: https://github.com/civilblur/youlag/issues/2

The workaround was to enable the User JS extension first, and then the User CSS. This order requirement will be fixed in the next update, and the README has been updated.

If the page looks like it is constantly loading, you can open up the inspect mode on your browser, then add the CSS class youlag-loaded to the body element. This will allow you to manually exit out of the loading state.

Please note that there is nothing in the Youlag extension that can or will inherently corrupt your FreshRSS instance, so all your data is safe.

Edit 2025-02-23: Please use the latest release, which is v3.0.4 as of writing.

Since I don’t use a TV myself, I have not looked into this scenario unfortunately.

Addressing the subscribing part; I had similar requirements, so I started subscribing via FreshRSS while using a custom theme to give it a YouTube-like experience.

I shared the setup a few month ago here: https://lemmy.world/post/21381606

Edit: One of the benefits of using selfhosted RSS with a web interface is that it is platform agnostic.

Hopefully this will spark some interest in that!

It applies the theme across the entire instance!

I believe it could be done however, but it’s likely more suitable as an extension, opposed to a “theme” that relies on client-side css/js. I haven’t explored the documentations for extensions as I intended this to be a “quick” solution to get a youtube-like experience.