If this is the episode I think it is, Blake really does a dumb thing at the end. The doctor on the planet's surface has come up with a inoculation for the alien virus and he needs to tell Blake before the virus affects him. So what does Blake do? Asks him a bunch of time-wasting questions, thus ensuring that the cure is lost. Gee, Blake, who's side are you on?

OK, Blake asked one delaying question, but the doc did chat on for awhile before that when he should have given the formula first.

Cally pushes a few buttons to set the coordinates, then we see the light on the green panel move one way then another to another location erratically. That inspires confidence in me.

At the minimum Blakes Seven must take place in the 28th century (old calendar). The Wanderer class ship was lost 700 years earlier and that was the first class of ship to reach deep space.

Why does Avon start cutting the pipe grate in the middle instead of to the side?

Strange fashions on this planet. Vinyl pallas with flared sleeves. Yuck!

Why do they need the crystal to intercept Federation signals when Orac can access any computer?

47 alert! The Wanderer ship is K-47.

61 Cygni is 11.1 light years from Earth. Oddly enough, ships have to fly in that general direction to get to "Cygnus Alpha" (Alpha Cygni).

Somebody says, that the ship went "missing in the constellation of 61 Cygni. 61 Cygni is a star, part of the constellation Cygnus the swan.

Shouldn't the morgue be sealed before the body is taken out of any protective wrapping?

The door is sealed to prevent contamination, but it apparently is a single door that can be kicked open.

In the center of a base that routes comm traffic, there seems to be several undetected messages between Liberator, Avon & Blake.

Tynus uses a thermal pack to start the fire, but earlier he commented on starting an electrical fire, which implies some kind of short circuit.

Good thing Tynus used some kind of pencl or ball-point pen to write that message or Avon & Vila would be in trouble.

No computers in the quarrentined area? They really underestimated how common computers would become, didn't they?

The explosion was supposed to completely destroy the console, but it just sparks & smoke.

The anti-serum should have been stored in a computer and broadcast to Blake.

If the 61 Cygnians wanted to confine humans to Earth then why send the plague to Fosferon, "thousands of light years away", instead of Earth, 11.1 light years away?

Blake is explaining why the quarrentine markers should go up, because if it spreads,. "That plague goes out to all the galaxies!" I thought the Federation was confined to a small part of the Milky Way galaxy.

Blake says, "Set course for the constellation Saurus." I'm not familiar with that constellation, and a constellation is a group of stars that are many light years apart from each other.

I guess Blake, Vila & Avon must have had their jabs as they are all uneffected. I see the isolation suits are made by the Michelin Man's tailor. It's a shame Belfriar had to die, he must have been one of the few liberal Federation officials. Getting his position by medical experiance rather than political or military means might be a reason.

I thought the Federation contained several galaxies. One of the episodes talks about Federation forces chasing Blake into "this galaxy," where naturally they manage to corner him. (How does one corner anyone in a whole galaxy? Or any 3-dimensional space?)

Star One contradicts Travis's statement in Duel by making it clear that all the federation is in the Milky Way & even the Liberator cannot travel between galaxies.

As this was written by Robert Holmes, I wonder if it was a rejected idea for Doctor Who. Blake is way out of character here, not only pointlessly getting involved in the whole virus thing but acting like an expert. He tells Belfriar to turn off the air ventilation. Belfriar, who, we're told, is the federation expert in viruses, asks him why. Blake explains it might slow down the spread of the virus. Belfriar had never thought of that. Blake has an almost Tom Baker-like expertise, control and calm that shows up Belfriar, whose expertise we viewers are just supposed to accept on faith as we see no evidence of it.