It's currently airing each Saturday on the Vortex CW programming block.
I remember being in the doldrums with regards to Spidey in the comics at the time Spectacular Spider-Man debuted. It made up for the crap going on in the comics (and Spider-Man 3) in spades. It is, hands down, the absolute best Marvel animated series to date, with Avengers EMH right behind it. If only the guys behind SSM could be given the reigns to the live-action movies...