Smart TVs are growing in popularity. Set-top boxes like Apple TV, Roku, or WD TV can make your “normal” TV "smart" and Smart TVs even smarter. Despite their functionality, they’re often missing interesting features, like bit-torrent, VPN and even specific TV channels. This presentation is about how to hack into WD TV set-top boxes and how to add experimental functionality without the risk of bricking it. Whether you want to add exotic TV channels, watch right from bit-torrent, or are crazy enough to do bitcoin mining on your TV – you are in charge. We will demonstrate several methods to become root using everything from remote exploits to hardware hacking. Unfortunately, just becoming root isn’t sufficient to make persistent changes. Because stronger modifications put your device at risk of bricking or of losing specific services, you must dig deeper. We are going to present and release our "adjusted" firmware that keeps all the manufacturer's encryption and service DRM keys intact. The firmware is minimally invasive and enables customization without risk. Patching becomes as easy as an SMB software upload. For those who want get deeper and dirtier, we will explain the firmware structure, how to extract the relevant encryption keys, and discuss the protected software modules. This includes a short overview of relevant tools to do hot-patching, live-debugging, and pointers to get started on reverse engineering core applications.