Watch MovieBlast on your TV using Amazon Fire Stick — the Downloader method works every time.
Amazon doesn't want you installing apps outside their official store. That's why you can't just open a web browser on your TV and download an APK file directly. But the Fire Stick runs on Android under the hood, so there is a perfectly legal bypass.
I'll walk you through the Downloader method. Millions of people use this exact routine every week. It takes exactly eight clicks to bypass Amazon's restriction and get the movieblast download onto your screen.
From Fire Stick home, go to Settings (gear icon, top right)
Select "My Fire TV" — it's the 4th option usually
Tap "Developer Options" — if you don't see it, tap "About" 7 times to unlock developer options first
Turn ON "Apps from Unknown Sources" — confirm when prompted
Press the home button, search for "Downloader" in the store
Install Downloader (it's free, made by AFTVnews — the legitimate version has 100k+ reviews)
Open Downloader, enter the MovieBlast APK URL, tap Go
When download completes, tap Install — then Open
MovieBlast APK is Android-only. Samsung Tizen and LG webOS don't run Android apps. Don't waste your time trying to hack a Samsung TV to accept an APK — the operating systems share zero architecture.
Your two real options: cast from your phone using Chromecast, or connect a Fire Stick to the TV's HDMI port and use the guide above. The Fire Stick method is vastly better because you aren't draining your phone battery for a two-hour movie.
If you prefer watching at a desk, read the Windows PC installation method instead.