Ok, not sure if this is relevant or not, but since ya'll my peeps, I'm willing to share.
The best app for movies is legit "moviebox Pro". It's invite only but I can give one code per week if anyone's interested. It literally has everything from old movies, paramount +, netflix, hulu, Apple +. It is free but I pay the $25.00/year for the premium plan as it streams in 4k and smaller VIP files.
If you're looking for free TV: https://thetvapp.to/tv and https://usatvgo.live/
For MLB, NFL, NHL, NBA and NCAAFootball (not basketball) - Download the DofuSports App. It's now called DofuStream. It's free. When you click a link to watch something, an add pops up for 10 seconds, close the add then the rest of the program is add free. You can also stream from your phone to your firestick or smart TV for free then. I use it to watch UofM Football games and all the Lions games.
Happy to help if you need it. Just PM me.