WQ 05 Feb 2011 Just when you thought CBS will have at least two hours they know they could cancel for next fall, now it looks like they could be down to one. The Defenders in its new time slot on Friday scored 20% higher than Medium did. Its 18-49 sucked, though, only 1.3, but still it tied for second place in the 8 pm hour in that demo. But a 5.4 in households for top spot in the hour saw it comfortably ahead of returning runner-up Who Do You Think You Are's 4.5. What a dilemma CBS has - what to cancel, what to cancel? Meanwhile, Fringe took a hit as it skidded down to a 2.4 from 2.6 and in 18-49 from a 1.9 to 1.6. Hmm, maybe the show isn't going to make a 4th season after all.