NBC in Albany, NY area breaking up for past week. Who has responsibility for the issue?

Be proactive and contact the station and report it!

That would be your local affiliate for NBC. Either an issue with the station itself or the feed from it to DirecTV.

Looks like the affiliate station is WNYT, owned by Hubbard Broadcasting.

Yup, just did that since it's the only contact point I can actually come up with.