That TV is the 16x9 HDTV right?
If so it is an RCA TV with a DTC-100 satellite receiver inside.
The Discrete Input commands DVD, VCR, Satellite will be the On commands for those units. The TV Power commands will turn the whole unit On and Off.
The DTC-100 has discrete commands for antennas Tv, Sat, aspect ratios etc.
All of these are posted here at RC in the discrete codes section under RCA
[Link: remotecentral.com].
-Jon