The thing with C4 is that it's got a decent number of shows but the scheduling is just dreadful and basically kills off many show's chances of doing well.
The Snowman and The Snowdog is another example of this. It could have been a huge hit for C4 if scheduled well, it has everything going for it but the slot. I agree with the poster that talked about C4 not being big enough to compete against the main two channels and has to pick its spots. I reckon the slot has knocked at least 2m off what it could have got.
Now this is the real problem some poor scheduling is really hurting them. It can cost the channel a fortune in lost revenue.