Sorry, apparently when I reply via email it doesn't get put here. Yes,
Chromecast with Google TV. This isn't an issue with a particular app.
The issue is the Chromecast menu to sideload any app is broken for me.
I have no idea how to attach a picture. This is pretty straightforward -
I get to the normal Install unknown apps screen and it won't let me even
move the mouse down to the buttons to change them.