TV B-Gone from AdaFruit

[Katie Wasserman]

(03-12-2015 09:03 PM)Jim Horn Wrote:  Out of curiosity, Mark, since a remote doesn't know if it's associated TV is on or off, it must use a single code to toggle the TV's power. So if Best Buy sent out a "turn TV on" code every ten seconds, I'd expect they'd turn off ten seconds later.

Most modern TV's do have dedicated ON and OFF IR codes as well as an ON/OFF toggle code. You can find these by digging a little on sites like this one.