Checked pinned repo for source

x86_64_tv builds are generic builds but using BlissOS' Zenith kernel.
x86_64_tv_go builds are generic builds but with extra configs from BlissOS Go + ATV Low RAM config

.iso images can be found at https://sourceforge.net/projects/lineageos-tv-x86/files/

(Check the directories to choose the build that you want instead of using the Download Latest button)

If you are looking for zip to flash manual updates, or mirror links of iso files, releases can be found at:
x86_64_tv : https://github.com/LineageOS-TV-x86/x86_64_tv/releases
x86_64_tv_go : https://github.com/LineageOS-TV-x86/x86_64_tv_go/releases

There are these options for Gapps:

• Custom MindTheGapps (A14)
• NotSoGapps, basically MindTheGapps but Play Services is being replaced with microG Services (A14)

If you want to know which variant you should flash, check out LineageOS wiki

Discussion on Telegram : https://t.me/androidtvcanactuallyrunonpc