Say Goodbye to Jennifer - S1-E19
Visible crew/equipment: While Rockford is in Dr. Stuart's office Stuart gets a wet washcloth for his bruises, and when he tells Rockford that he's known Jennifer since she moved to LA, the white T-mark is visible on the floor beside the patient chair, where Stuart had been standing. (00:30:00)
Say Goodbye to Jennifer - S1-E19
Visible crew/equipment: When Rockford returns the tape to Mitch they discuss Jennifer, and just as Rockford tells Mitch that he doesn't deal in open cases, two black T-marks taped to the rug are visible near the desk. (00:03:35)