But I can't change the TV channel because my smartphone doesn't have an IR transmitter.
Apologies to Hugh Galagher, but seriously, why don't Android smartphones have IR transmitters? My Nexus 4 is always in my hand, but when I want to change the TV channel, I have to turn the house upside down to find the remote. I would have thought it would be cheap and easy to include an IR transmitter in a smartphone and that a decent Android remote control app would be a killer app. Your thoughts?