Apple Music app not working on my tv

My music library is all imported from CDs etc and I have access to them on my MacBook but I've been trying for ages to access my library by logging in on my TV and each time I log in it keeps prompting me to subscribe to Apple Music and none of my albums are showing up.

I follow the steps to log in via mobile with the QR code or by typing in the code at link.apple.com and it's like I have nothing in my library even though it's perfectly fine on my Mac and I'm just wondering if I can fix this or if I just have to forget about it.

I've been logged in before with a different iCloud account where I have a subscription and I've never faced this issue.