I never quite “got” this single-set detective comedy from the mid-1970s, but this particular episode is pretty solid. Wojo brings a tray of brownies baked by his new girlfriend into the station, unaware that they’ve been laced with hash, and soon enough every cop on the force except for Barney is tripping major balls. There are some great moments for Jack Soo’s Nick, who becomes obsessed with the word “mushy,” and a clever integration of the side story about a feuding actor and critic who grow captivated with the “very Chekhov-ian” scene unfolding in front of them.