Hi-
A friend of mine passed this link along for some of
the IR codes used in TV remotes. I have not used nor
verified the accuracy of the information, but it might
be of interest:
Should get you to the site (which I just tried again).
That, along with a simple microcontroller and an IR LED
should be all that you need to generate the OFF signal
for your application if you wish to persue the do it
yourself. Otherwise, the aforementioned controller will
adequately do the job. I have seen reports of them on
the local TV channels and the inventor/promoter of the
device did it as a fun project.
The link above is also useful when doing a TV type
receiver. With a cheap remote, you can control various
functions from the microcontroller.
BTW, I am not affiliated with the link above. Just passed
along from a friend of mine.
Hope that this helps.
Cheers,
Rich S.