Season 3[]
- The Widow's Son in the Windshield
- The Secret in the Soil (mentioned)
- The Intern in the Incinerator (mentioned)
- The Knight on the Grid
- The Pain in the Heart
Season 4[]
- Yanks in U.K. Part 1. (mentioned)
- The Critic in the Cabernet (mentioned)
- The Perfect Pieces in the Purple Pond (mentioned)
Season 12[]
- The Flaw in the Saw (mentioned)
- The Steel in the Wheels