Moonlight
Overscan
Use xrandr to tweak the display settings to overcome my TV's (can't be disabled) overscan.
xrandr --output HDMI1 --mode 1920x1080 --panning 1920x1080 --transform 1.08,0,-85,0,1.06,-30,0,0,1
Remove the transform when done
xrandr --output HDMI1 --mode 1920x1080 --panning 1920x1080 --transform none