It seems to me that the producers and script writers were bored to death from the 4 years of "Blake's 7" production and made everything possible to take revenge in that episode. They got all characters in front of the wall and punished them with death for all the headaches through the years. Even worse - they discredit most of them before that. It seems that all previous heroes had been degrading to killers and stupid shouting order-giving psychopaths. Avon kills Blake just for fun ... shooting him 3 times? ... Why not 5 or stubbing him with knife at the end? It seems that in that episode all characters were under drugs .. may be from the planet atmosphere ... In my opinion that is not logical, or convincing, or the smart way to end all.
