Minger App and Music-Controlled Strip Light | $18 | Amazon | Promo code R8NNTV6U
$18 would be a good price for a barebones HDTV bias light that you have to get up off the couch to control. But today, that gets you a 16.4' strip with a built-in microphone to bounce along with ambient music, and even Wi-Fi app and Alexa control. I have a similar set from the same company behind my TV, and it works great. Just use promo code R8NNTV6U at checkout to get the deal.