Repurposing an old Android phone can enhance home entertainment by connecting it to a smart TV through various methods. Both devices should be on the same Wi-Fi network to use mobile apps like Roku or Amazon's Fire TV remote app. If no official app is available, generic options like Universal TV Remote can be found on Google Play, although they may include ads. Bluetooth connectivity is also an option, exemplified by the Bluetooth Remote app. If Wi-Fi or Bluetooth is not feasible, an infrared (IR) blaster can be purchased to turn the smartphone into a universal remote without needing an internet connection. IR blasters connect via the USB-C port and communicate with the TV's built-in components. Various IR blasters are available, including standard models and more advanced versions that support voice commands. Most Wi-Fi and Bluetooth apps are free, while IR blasters are affordable and widely available.