UPDATE,

I spent the last couple of hours and did the trial
& error method on the RS 15-1994 remote to find the
codes. My results are as follows:

For the Pioneer HDTV(device code 0166)
Power On code 247
Power Off code 251

No luck for the Expressvu sat receiver(device code
0775). Could only find power on/off code 594.

Does anybody know whether another make of remote
could possibly have the sat receiver codes I need,
or are the 256 codes I tried on the 15-1994 the end
of the line? Let me know,

Rgds,
Fang