Some recent Toshiba RPTV's do respond to discrete power commands
[Link: remotecentral.com]Toshiba DVD's will turn on from off with the Play button so On=Play|Stop and Off=Play|Power toggle.
The STB probably does not have a discrete power command.
To program your MX-500 you will need a One-For-All remote. The URC-8811 and Radio Shack RS15-2116 are the most commonly recommended both about $30. Those have a JP1 connector and can be programmed with a PC to do just about anything if it isn't in the built in library.
-Jon
This message was edited by jarmstrong on 01/31/03 21:09.