Received this response to my email to the station:

Andrew – Than you for your note. We lease a fiber optic line from AT&T; to provide DirecTV with the best possible quality HD signal. Unfortunately, AT&T; tells us that yesterday someone accidentally cut the fiber line between us and DirecTV. As of this morning they have repaired the damage, but we are also talking with DirecTV to better understand why they did not take advantage of the backup options available to them.

We are not able to show last night’s programming again soon, but most of the programs should be rebroadcast over the coming months.

Thank you again for writing,

I suppose I’ll watch 30 Rock on Hulu or grab it from bittorrent.