tim-gromeyer/TV-Killer ? reverse-engineered prompt

Build me a simple Android prank app called TV Killer that uses the phone’s IR blaster to send a TV power off signal. I want a clean, modern interface with just two big buttons, one to start transmitting and one to stop, and it should feel easy to use right away. Make it work on newer Android phones but still support older ones too, and include a dark mode so it looks good at night. If the phone has an internal IR blaster or an external USB IR blaster, the app should be able to use either one. Keep the app lightweight and focused on one job, turning off nearby TVs with a single tap. If you need to look up current Android docs while building it, go ahead. Also make sure it includes a simple disclaimer about using it responsibly and for harmless fun only.