Columns: No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code
27 | 1 | "Doogenstein" | Eric Laneuville | Linda Morris & Vic Rauseo | September 12, 1990 | 1202 | 28 | 2 | "Guess Who's Coming to Doogie's" | Stephen Cragg | Nat Berntein & Mitchel Lee Katlin | September 19, 1990 | 1201 | 29 | 3 | "Ask Dr. Doogie" | Win Phelps | Phil Kellard & Tom Moore | September 26, 1990 | 1204 | 30 | 4 | "C'est la Vinnie" | Joan Darling | Michael Swerdlick | October 3, 1990 | 1205 | 31 | 5 | "Car Wars" | Brad Silberling | Nick Harding | October 10, 1990 | 1207 | 33 | 7 | "Academia Nuts" | Ed Sherin | Nick Harding | October 24, 1990 | 1203 | 34 | 8 | "Revenge of the Teenage Dead" | Win Phelps | Nat Berntein & Mitchel Lee Katlin | October 31, 1990 | 1209 | 35 | 9 | "Nautilus for Naught" | Matia Karrell | Nick Harding & Tara Ison & Neil Landau | November 7, 1990 | 1211 | 36 | 10 | "Don't Let the Turkeys Get You Down" | David Carson | Nick Harding | November 14, 1990 | 1214 | 37 | 11 | "Oh Very Young" | Joan Darling | Linda Morris & Vic Rauseo | November 28, 1990 | 1210 | 38 | 12 | "TV or Not TV" | Joan Tewkesbury | Phil Kellard & Tom Moore | December 5, 1990 | 1212 | 39 | 13 | "A Woman Too Far" | Victoria Hochberg | Phil Kellard & Tom Moore | December 12, 1990 | 1206 | 40 | 14 | "Presumed Guilty" | Stephen Cragg | Phil Kellard & Tom Moore | January 2, 1991 | 1215 | 41 | 15 | "To Live and Die in Brentwood" | Scott Goldstein | Nat Berntein & Mitchel Lee Katlin | January 9, 1991 | 1213 | 42 | 16 | "Air Doogie" | Rob Thompson | Nat Berntein & Mitchel Lee Katlin | January 23, 1991 | 1217 | 43 | 17 | "A Life in Progress" | Sandy Smolan | Hollis Rich | January 30, 1991 | 1216 | 44 | 18 | "My Two Dads" | Bill D'Elia | Nick Harding | February 6, 1991 | 1218 | 45 | 19 | "Nobody Expects the Spanish Inquisition" | Stephen Cragg | Nick Harding | February 13, 1991 | 1220 | 46 | 20 | "Fatal Distraction" | Gabrielle Beaumont | Phil Kellard & Tom Moore | February 20, 1991 | 1219 | 47 | 21 | "The Doctor, the Wife, Her Son and the Job" | Brad Silberling | Hollis Rich | March 13, 1991 | 1221 | 48 | 22 | "Planet of the Dateless" | Kristoffer Siegel-Tabori | Nat Berntein & Mitchel Lee Katlin | March 20, 1991 | 1122 | 49 | 23 | "Doogie's Wager" | Charles Haid | Hollis Rich | April 3, 1991 | 1224