[qsort]

Several TV models already incorporate that feature. If your device is supported, your remote should have a button conforming to the IEC 60417-5009 standard to activate it.

[MarioMan]

For those that didn't get the joke (like myself), the IEC 60417-5009 standard describes the power button icon shape, with a line partially within a broken circle.

[serf]

that method is particularly painful now that we're in the era of the booting-TV.