Media – Election – Bias?

As a follow-up to Election Coverage, I have another question. How come CNN, ABC, and CBS do not have a problem projecting a victory for John Kerry in Pennsylvania when he only leads by 121,188 (100% reporting) or Michigan where Kerry only leads by 105,602 (87% reporting); HOWEVER, have major issues declaring Bush a winner in Ohio when he has a 136,211 (100% reporting) lead?

This looks very suspicious to me. We know CBS (Rathergate) and ABC (Political Memo) are bias toward Kerry. Having always felt CNN is bias; it appears to me they are doing nothing to hide their bias and in fact are walking the line of flaunting it in our face.

Anyone else have any thoughts on this?