When Channel 9 raided its own morning show to fill holes at night, Channel 4 decided to rise and shine to the occasion. The chemistry between early-a.m. personalities Scott Sander, Brooke Wagner, Ed Greene, Wayne Herman and Mark McIntosh, supplemented by the ace traffic team of Luan Akin and Lynn Carey, rivals that achieved by Channel 9 before the old gang split. The departure of Sander this March could change that, but in the meantime, one thing's clear: The contest for Denver TV supremacy in the mornings is no longer a one-horse race.