Blake's 7, Series Two

Cally:
So what is wrong?

Orac:
You deduced it yourself earlier. Space Command has long tried to perfect a course interceptor attuned to the circuitry of navigtional computers and rational coordinators like Zen. The scientists on Auron, however, had the wit to aim for the weaker point.

Avon:
The human brain.

Orac:
Correct.

Cally:
A telepathic order was beamed to Blake to force him reroute to that asteroid?

Orac:
As you, yourself, forsaw.

Avon:
So tell us something new.

Orac:
It is to Blake that you should look for the new.

Avon:
What's that supposed to mean? That they are still influencing him?

Orac:
Correct again.

Avon:
But how? A device of that kind would need an enormous power source.

Orac:
Agreed. But now that they...

Avon:
[Interrupting] Now that they are close at hand, low power; of course.