Navigate to (often found by pressing F1 + 111 or F1 + 666 on many remote controls).

The service is typically accessible via:

Many satellite decoders (like Media Star or Starsat) come with a built-in "Forever Server" used to unscramble premium channels. Activation Code/Product Key - Forever Help Center

The name "Forever" is the brand name of the app, not a guarantee that the service works forever for free. Legitimate subscriptions are usually paid monthly or yearly.