I'm going to make a wild suggestion... weak battery in the remote control.
The voltage is "sagging" by the time the sequencer gets to the TV power
signal.

I no longer have one of these, so I can't check -- but are you supposed to
hold down the button until everything comes on?

Finally... It might be that the unit is "busted". Of course, since the
operation is under microprocessor control, this seems unlikely.