PowerVu is developed by Scientific Atlanta. It is a conditional access system for digital television.
PowerVU key is basically a 28 digit code or password
You have to input these 28 digits into your receiver to watch a channel that is encrypted by the Powervu.
It is used to encrypted professional broadcasting.
Some well-known companies using Powervu key are Retevision, Bloomberg Television, Discovery Channel, AFRTS, ABS-CBN, GMA Network, and American Forces Network.
The cable operator also uses this to prevent unauthorized viewers and non-cable subscribers from viewing their service.
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