In case anybody is interested, I have figured out how to turn off the Shield TV with Harmony 650+Flirc (or more precisely, put the Shield TV to sleep.) Yes, I'm THAT OCD about keeping my power bill down (not to mention keeping my house cooler in Phoenix summers.) What you'll want to do is tell your Harmony that in fact you do want to control the power of your Shield TV, and then set the Flirc to recognize your profile's power off button. Different profiles have different defaults in this regard, and I know people use different ones, so I'm just going to tell you how I configured mine: 1. I use