| Title | Season Episode | Airdate | Stardate | Year | Rating | |
| The Best of Both Worlds, Part 2 | 4 x 01 | 74 | 24 Sep 1990 | 43999.1 | 2367 |  |
| Family | 4 x 02 | 75 | 1 Oct 1990 | 44012.3 | 2367 |  |
| Brothers | 4 x 03 | 76 | 8 Oct 1990 | 44085.7 | 2367 |  |
| Suddenly Human | 4 x 04 | 77 | 15 Oct 1990 | 44143.7 | 2367 |  |
| Remember Me | 4 x 05 | 78 | 22 Oct 1990 | 44161.2 | 2367 | |
| Legacy | 4 x 06 | 79 | 29 Oct 1990 | 44215.2 | 2367 | |
| Reunion | 4 x 07 | 80 | 5 Nov 1990 | 44246.3 | 2367 | |
| Future Imperfect | 4 x 08 | 81 | 12 Nov 1990 | 44286.5 | 2367 | |
| Final Mission | 4 x 09 | 82 | 19 Nov 1990 | 44307.3 | 2367 |  |
| The Loss | 4 x 10 | 83 | 31 Dec 1990 | 44356.9 | 2367 | |
| Data's Day | 4 x 11 | 84 | 7 Jan 1991 | 44390.1 | 2367 | |
| The Wounded | 4 x 12 | 85 | 28 Jan 1991 | 44429.6 | 2367 | |
| Devil's Due | 4 x 13 | 86 | 4 Feb 1991 | 44474.5 | 2367 | |
| Clues | 4 x 14 | 87 | 11 Feb 1991 | 44502.7 | 2367 | |
| First Contact | 4 x 15 | 88 | 18 Feb 1991 | Unknown | 2367 | |
| Galaxy's Child | 4 x 16 | 89 | 11 Mar 1991 | 44614.6 | 2367 | |
| Night Terrors | 4 x 17 | 90 | 18 Mar 1991 | 44631.2 | 2367 | |
| Identity Crisis | 4 x 18 | 91 | 25 Mar 1991 | 44664.5 | 2367 | |
| The N'th Degree | 4 x 19 | 92 | 1 Apr 1991 | 44704.2 | 2367 | |
| Qpid | 4 x 20 | 93 | 22 Apr 1991 | 44741.9 | 2367 | |
| The Drumhead | 4 x 21 | 94 | 29 Apr 1991 | 44769.2 | 2367 | |
| Half a Life | 4 x 22 | 95 | 6 May 1991 | 44805.3 | 2367 | |
| The Host | 4 x 23 | 96 | 13 May 1991 | 44821.3 | 2367 | |
| The Mind's Eye | 4 x 24 | 97 | 27 May 1991 | 44885.5 | 2367 | |
| In Theory | 4 x 25 | 98 | 3 Jun 1991 | 44932.3 | 2367 | |
| Redemption, Part 1 | 4 x 26 | 99 | 17 Jun 1991 | 44161.2 | 2367 | |
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