Well, mostly I sit down with the express purpose of checking something out for a reason (for a post, or a fanfic idea etc) and then - if it's one I like - find myself watching the whole thing, with pauses for the good bits, and then two more just for fun (this tends to happen with 2nd-season *a lot*).
I'm afraid that it doesn't *always* happen. If I'm checking something in 'Stardrive' or 'Dawn of the Gods' I resist the lure of the whole ep quite easily. And I've still only managed to stay awake through 'Ultraworld' *once* ...
When writing the 'Christmas Canto' I made myself watch the last few minutes of 'Blake' over and over to try and get the shooting right from Avon's POV; for another, I had to study the early scenes of 'Voice from the Past' (the Avon-Blake bits, so painful :-)) very, very carefully (I'm afraid I avoided Governer Le Grande like the plague).
At the minute I'm seriously studying a combination of 'Gambit' and 'Powerplay' (don't ask <g>), which makes for an errr ... interesting mental combination. And I can always *always* watch 'Redemption', 'Pressure Point' and 'Star One' again ...
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