4x08: Heartbreak Hotel
5x04: Murder, He Wrote
5x05: Probable Cause
5x08: After Hours
5x10: Significant Others
5x09: Secret Santa
5x06: The Final Frontier
5x03: Secret's Safe with Me
5x01: After the Storm
5x23: The Human Factor
5x19: The Lives of Others
5x18: The Wild Rover
