Using an Arduino can a TV respond to specific audio levels?

New to the Arduino scene I have a fun project in mind where I use a VuVuzela horn to change my TV channel automatically to my favorite soccer channel. My wife loves to steal and hid the remote from me because she thinks I watch too much soccer.
So I want to make a remote of my own.

These two videos I found show that TVs and Arduinos respond really well and am looking for possible ways to make this happen.

I wonder what a rectally-fitted vuvuzela looks hurts like.