I was given to believe that i could see films to watch on my smart tv , so how do i get them
Seriously!!
What does it have to do with F-Droid?
You can download movies from youtube and other websites to your mobile phone by using Pipepipe [1]. You can install termux [2].
In termux can use the command line tools “pkg update” “pkg install ” to install a http server of your choice. Then configure the httpd to offer the directory with the downloaded movies and try to get your phone to view the directory offerd by the httpd. If your smart TV doesn’t offer to view videos from a http source I have no other idea but change the TV.
[1] PipePipe | F-Droid - Free and Open Source Android App Repository
[2] Termux | F-Droid - Free and Open Source Android App Repository