Dr. Horrible is on the verge of seizing control of the one medium that’s long evaded him: Television! The CW’s presentation of Dr. Horrible’s Sing-Along Blog is creeping closer to its premiere date, and EW.com has the network’s first promo. Joss Whedon’s Web sensation hits broadcast on Tuesday, Oct. 9 at 9 p.m. How many will watch, do you think?