Now the BIG Question is, after Challenge show all of Series 3, will they continue to show Knightmare throughout March with a different series??
I've been meaning to post much the same point as this. I've been thinking about the possible answers too.
At the moment Challenge? only have the rights to show Series 3. They can repeat it several more times within their current rights schedule. As people have stated, they like repeating what they have: it's not just ratings the
first time they show things that are important to Challenge?, but the second, third, and umpteenth times. It took them a pretty long time after deciding they wanted to show it over Christmas and beyond to actually secure it. They also seem pretty disorganised: they get their announcements wrong, hardly ever respond to messages on their forum, and haven't updated their website front page so it's still advertising the Cult Christmas a month after it finished.
What I'm basically saying is to not be too disappointed if, after showing Series 3 in its entirety, they go on to repeat it again before doing anything else. Personally, I think they
will eventually get the rights to show the other Series too and then, as is their habit, put the full 8 on a continuous loop. I suppose what might help is for people to go to their website forums and say how much they've enjoyed watching it and how they'd love to see the other series repeated too: it might nudge them in the right direction quicker than they would otherwise choose to take it. I'm not going to nag others to do so as I have in the past, however.
Otherwise, I guess we all wait and hope.

"Sometimes of the Grey, but always of the Green, dearie. Shurrup Brollachan! Have you seen Festus, my dear? I need to take him back to Cornwall. " [cackle]