John as Detective George Donahue
| 1/24/80 | S 3: Ep 15 Episode 62 | Detective George Donahue |
| 10/4/79 | S 3: Ep 4 Episode 51 | |
| 9/27/79 | S 3: Ep 3 Episode 50 | |
| 9/20/79 | S 3: Ep 2 Episode 49 | |
| 9/13/79 | S 3: Ep 1 Episode 48 | |
| 3/15/79 | S 2: Ep 22 Episode 47 | |
| 3/8/79 | S 2: Ep 21 Episode 46 | |
| 3/1/79 | S 2: Ep 20 Episode 45 | |
| 2/15/79 | S 2: Ep 19 Episode 44 | |
| 2/8/79 | S 2: Ep 18 Episode 43 | |
|
2/1/79
|
S 2: Ep 17 Episode 42 | |
| 1/18/79 | S 2: Ep 16 Episode 41 | |
| 1/11/79 | S 2: Ep 15 Episode 40 | |
| 1/4/79 | S 2: Ep 14 Episode 39 | |
| 12/21/78 | S 2: Ep 13 Episode 38 | |
| 12/14/78 | S 2: Ep 12 Episode 37 | |
| 12/7/78 | S 2: Ep 11 Episode 36 |