| S04E01 | #58 | Hot Off the Grill | 03/09/1989 | | |
| S04E02 | #59 | Dead Men Don't Do Aerobics | 10/09/1989 | | |
| S04E03 | #60 | Buck Saves the Day | 24/09/1989 | | |
| S04E04 | #61 | Tooth or Consequences | 01/10/1989 | | |
| S04E05 | #62 | He Ain't Much, But He's Mine | 08/10/1989 | | |
| S04E06 | #63 | Fair Exchange | 29/10/1989 | | |
| S04E07 | #64 | Desperately Seeking Miss October | 05/11/1989 | | |
| S04E08 | #65 | 976-SHOE | 12/11/1989 | | |
| S04E09 | #66 | Oh, What a Feeling | 19/11/1989 | | |
| S04E10 | #67 | At the Zoo | 26/11/1989 | | |
| S04E11 | #68 | It's a Bundyful Life (1) | 17/12/1989 | | |
| S04E12 | #69 | It's a Bundyful Life (2) | 17/12/1989 | | |
| S04E13 | #70 | Who'll Stop the Rain | 07/01/1990 | | |
| S04E14 | #71 | A Taxing Problem | 14/01/1990 | | |
| S04E15 | #72 | Rock and Roll Girl | 04/02/1990 | | |
| S04E16 | #73 | You Gotta Know When to Hold 'Em (1) | 11/02/1990 | | |
| S04E17 | #74 | You Gotta Know When to Fold 'Em (2) | 18/02/1990 | | |
| S04E18 | #75 | What Goes Around Comes Around | 25/02/1990 | | |
| S04E19 | #76 | Peggy Turns 300 | 25/03/1990 | | |
| S04E20 | #77 | Peggy Made a Little Lamb | 15/04/1990 | | |
| S04E21 | #78 | Raingirl | 29/04/1990 | | |
| S04E22 | #79 | The Agony of De-Feet | 06/05/1990 | | |
| S04E23 | #80 | Yard Sale | 13/05/1990 | | |