Congressional operatives should see a flood of familiar faces on KableTown NBCUniversal tonight, as a group of Senators lend some street cred to “Parks and Recreation,” while a trio of D.C. tastemakers — including one Barracks Row toque — help quickfire up “Top Chef: Seattle.”

As we reported back in July, in tonight’s episode (9:30 p.m.) of “Parks and Rec,” “Ms. Knope Goes to Washington,” Sens. John McCain (R-Ariz.), Barbara Boxer (D-Calif.) and Olympia Snowe (R-Maine) all get to play themselves at a very D.C. reception. (So meta; we know.)