Pretty trivial to tell ROB what to do.
I believe these are the screen flashes required to control ROB. (1 represents a green screen, 0 represents a black screen. common bits at top of list.)
101 1 1 1
0 0 1 0 Down x 1
0 1 0 0 Left
0 1 0 1 Up x 2
0 1 1 0 Close
1 0 0 0 Right
1 0 0 1 Reset
1 0 1 0 Open
1 1 0 0 Up x 1
1 1 0 1 Down x 2
Through all of this, there is at least 3 flashes, and at most 4 flashes, sent to ROB. If there is ever 5 or more flashes sent, 10101010101, as such, this puts ROB in test mode, used to verify that you have lined ROB up right with the TV. A reset is usually sent afterwards, to put ROB into a known state. The Up/Down x 2, are used with Gyromite/Robot Gyro, and the Up/Down x 1 are used with Stackup/Robot Block.