Need Directv remote help

[COMET]

I have an old hr20-700 directv HD-DVR.I have just replace my TV, and stereo. My old setup had the remote programed when I hit the power button, it turned my tv,stereo, and DTV box on or off with one click. I cannot remember the way to do this. i have the remote setup for each component, but I have to more the selector button on top of the remote to turn each device off. Any help?? RC23 remote.

[MDR]

try this http://support.directv.com/app/answers/detail/a_id/1343
or google rc23 remote for other sites.
mdr