S01E16: Margin Of Error
Alex amasses a bundle by playing the stock market on paper for his economics class, and courts disaster by secretly investing his father's money.
Previous Episode 
Season 1
Pilot
S1E1 / 22 Sep 1982
Not With My Sister You Don't
S1E2 / 29 Sep 1982
I Know Jennifer's Boyfriend
S1E3 / 06 Oct 1982
Summer of '82
S1E4 / 27 Oct 1982
I Never Killed for My Father
S1E5 / 03 Nov 1982
Give Your Uncle A Kiss
S1E6 / 10 Nov 1982
Big Brother Is Watching
S1E7 / 17 Nov 1982
No Nukes Is Good Nukes
S1E8 / 24 Nov 1982
Death Of A Grocer
S1E9 / 01 Dec 1982
Have Gun, Will Unravel
S1E10 / 08 Dec 1982
A Christmas Story
S1E11 / 15 Dec 1982
Oops
S1E12 / 22 Dec 1982
Sherry Baby
S1E13 / 12 Jan 1983
The Fugitive (1)
S1E14 / 19 Jan 1983
The Fugitive (2)
S1E15 / 26 Jan 1983
Margin Of Error
S1E16 / 09 Feb 1983
French Lessons
S1E17 / 15 Feb 1983
I Gotta Be Ming
S1E18 / 22 Feb 1983
Suzanne Takes You Down
S1E19 / 15 Mar 1983
The Fifth Wheel
S1E20 / 27 Mar 1983
Stage Fright (a.k.a. Video Jitters)
S1E21 / 03 Apr 1983Elyse D'Arc
S1E22 / 10 Apr 1983
Season 2
Tender is the Knight
S2E1 / 28 Sep 1983The Homecoming
S2E2 / 12 Oct 1983
The Harder They Fall
S2E3 / 19 Oct 1983
This Year's Model
S2E4 / 26 Oct 1983
Not An Affair to Remember
S2E5 / 02 Nov 1983
Speed Trap
S2E6 / 09 Nov 1983
Sweet Lorraine
S2E7 / 16 Nov 1983
Batter Up
S2E8 / 30 Nov 1983
A Keaton Christmas Carol
S2E9 / 14 Dec 1983
To Snatch a Keith
S2E10 / 21 Dec 1983
Birthday Boy
S2E11 / 05 Jan 1984
Go Tigers
S2E12 / 12 Jan 1984
"M" is for the Many Things
S2E13 / 19 Jan 1984
Say Uncle
S2E14 / 26 Jan 1984
Ladies' Man
S2E15 / 02 Feb 1984
Ready or Not
S2E16 / 09 Feb 1984
Double Date
S2E17 / 16 Feb 1984
Lady Sings the Blues
S2E18 / 23 Feb 1984
Baby Boy Doe
S2E19 / 08 Mar 1984
The Graduate
S2E20 / 15 Mar 1984
Diary of a Young Girl
S2E21 / 03 May 1984
Working At It
S2E22 / 10 May 1984
Season 3
The Gambler
S3E1 / 20 Sep 1984
Here We Go Again
S3E2 / 27 Sep 1984
Little Man on Campus
S3E3 / 04 Oct 1984
Love Thy Neighbor
S3E4 / 11 Oct 1984Keaton and Son
S3E5 / 18 Oct 1984
Fabric Smarts
S3E6 / 25 Oct 1984
Hotline Fever
S3E7 / 01 Nov 1984
4 Rms Ocn Vu
S3E8 / 08 Nov 1984
Best Man
S3E9 / 15 Nov 1984
Lost Weekend
S3E10 / 22 Nov 1984
Don't Kiss Me, I'm Only the Messenger
S3E11 / 29 Nov 1984
Help Wanted
S3E12 / 06 Dec 1984
Karen II, Alex 0
S3E13 / 13 Dec 1984
Oh Donna
S3E14 / 03 Jan 1985
Auntie Up
S3E15 / 10 Jan 1985
Philadelphia Story
S3E16 / 17 Jan 1985
Birth of a Keaton (1)
S3E17 / 24 Jan 1985
Birth of a Keaton (2)
S3E18 / 31 Jan 1985
Cry Baby
S3E19 / 07 Feb 1985
Don't Know Much About History...
S3E20 / 14 Feb 1985
Bringing Up Baby
S3E21 / 21 Feb 1985
Cold Storage
S3E22 / 07 Mar 1985
Remembrances of Things Past
S3E23 / 28 Mar 1985
Season 4
The Real Thing (1)
S4E1 / 26 Sep 1985
The Real Thing (2)
S4E2 / 03 Oct 1985
Mr. Wrong
S4E3 / 17 Oct 1985
Designated Hitter
S4E4 / 24 Oct 1985
Don't Go Changin'
S4E5 / 31 Oct 1985
The Old College Try
S4E6 / 07 Nov 1985
My Tutor
S4E7 / 14 Nov 1985
Mr. Right
S4E8 / 21 Nov 1985
Just One Look
S4E9 / 05 Dec 1985
How Do You Sleep?
S4E10 / 12 Dec 1985
You've Got a Friend
S4E11 / 19 Dec 1985
Nothing But a Man
S4E12 / 02 Jan 1986
The Disciple
S4E13 / 09 Jan 1986
Where's Poppa?
S4E14 / 16 Jan 1986
Fool for Love
S4E15 / 23 Jan 1986
Checkmate
S4E16 / 30 Jan 1986
Engine Trouble
S4E17 / 06 Feb 1986
A Word to the Wise
S4E18 / 13 Feb 1986
Art Lover
S4E19 / 20 Feb 1986
Teacher's Pet
S4E20 / 03 Mar 1986
My Buddy
S4E21 / 06 Mar 1986
Once in Love with Elyse (a.k.a. Loan Arranger)
S4E22 / 01 May 1986
Paper Chase (a.k.a. Mallory's Graduation)
S4E23 / 08 May 1986
Season 5
Be True to Your Preschool
S5E1 / 25 Sep 1986
Starting Over
S5E2 / 02 Oct 1986
The Freshman and the Senior
S5E3 / 09 Oct 1986
My Back Pages
S5E4 / 16 Oct 1986
Beauty and the Bank
S5E5 / 30 Oct 1986
Mrs. Wrong (1)
S5E6 / 06 Nov 1986
Mrs. Wrong (2)
S5E7 / 13 Nov 1986
The Big Fix
S5E8 / 17 Nov 1986
My Brother's Keeper
S5E9 / 20 Nov 1986
High School Confidential
S5E10 / 04 Dec 1986
Paper Lion
S5E11 / 11 Dec 1986
My Mother, My Friend
S5E12 / 18 Dec 1986
O'Brother (1)
S5E13 / 08 Jan 1987
O'Brother (2)
S5E14 / 15 Jan 1987
Higher Love
S5E15 / 22 Jan 1987
Architect's Apprentice
S5E16 / 29 Jan 1987
A Tale of Two Cities (1)
S5E17 / 05 Feb 1987
A Tale of Two Cities (2)
S5E18 / 12 Feb 1987
Battle of the Sexes
S5E19 / 19 Feb 1987
Band on the Run
S5E20 / 26 Feb 1987
Keaton vs. Keaton
S5E21 / 05 Mar 1987
A, My Name is Alex
S5E22 / 12 Mar 1987
"D" is for Date
S5E23 / 20 Mar 1987
Love Me Do
S5E24 / 30 Apr 1987
The Visit
S5E25 / 07 May 1987
Matchmaker
S5E26 / 23 Jul 1987
It's My Party (1)
S5E27 / 06 Aug 1987
It's My Party (2)
S5E28 / 13 Aug 1987
Season 6
The Last of the Red Hot Psychologists
S6E1 / 13 Sep 1987
Dear Mallory
S6E2 / 20 Sep 1987
The Other Woman
S6E3 / 27 Sep 1987
Dream Date
S6E4 / 04 Oct 1987
Super Mom
S6E5 / 18 Oct 1987
Walking On Air
S6E6 / 25 Oct 1987Invasion of the Psychologist Snatchers
S6E7 / 01 Nov 1987
The Way We Were
S6E8 / 08 Nov 1987
Mister Sister
S6E9 / 15 Nov 1987
Citizen Keaton
S6E10 / 22 Nov 1987
Father Time (1)
S6E11 / 29 Nov 1987
Father Time (2)
S6E12 / 06 Dec 1987
The American Family
S6E13 / 13 Dec 1987
Anniversary Waltz
S6E14 / 16 Dec 1987
Miracle in Columbus
S6E15 / 20 Dec 1987
The Play's the Thing
S6E16 / 10 Jan 1988
The Spirit of Columbus
S6E17 / 17 Jan 1988
The Blues Brother
S6E18 / 24 Jan 1988
Read It and Weep (1)
S6E19 / 07 Feb 1988
Read It and Weep (2)
S6E20 / 14 Feb 1988Quittin' Time
S6E21 / 21 Feb 1988
Spring Reminds Me (a.k.a. Rosalie's Legacy)
S6E22 / 28 Feb 1988
The Boys Next Door
S6E23 / 06 Mar 1988Sign of the Times
S6E24 / 13 Mar 1988
Return of the Native
S6E25 / 20 Mar 1988
Father, Can You Spare a Dime?
S6E26 / 01 May 1988
Season 7
It Happened One Night
S7E1 / 30 Oct 1988
Designing Woman
S7E2 / 06 Nov 1988
Truckers
S7E3 / 13 Nov 1988
Beyond Therapy
S7E4 / 27 Nov 1988
Heartstrings (1)
S7E5 / 04 Dec 1988
Heartstrings (2)
S7E6 / 11 Dec 1988
Heartstrings (3)
S7E7 / 18 Dec 1988
Basic Training
S7E8 / 01 Jan 1989
Deja Vu
S7E9 / 08 Jan 1989
Nick's Best Friend
S7E10 / 15 Jan 1989
Get Me to the Living Room on Time
S7E11 / 29 Jan 1989
The Job Not Taken
S7E12 / 05 Feb 1989
The Wrecker's Ball
S7E13 / 12 Feb 1989
My Best Friend's Girl
S7E14 / 19 Feb 1989
'Til Her Daddy Takes the T-Bird Away
S7E15 / 26 Feb 1989
Simon Says
S7E16 / 05 Mar 1989
All in the Neighborhood (1)
S7E17 / 12 Mar 1989
All in the Neighborhood (2)
S7E18 / 19 Mar 1989
They Can't Take That Away From Me (1)
S7E19 / 02 Apr 1989
They Can't Take That Away From Me (2)
S7E20 / 09 Apr 1989
Rain Forests Keep Falling on My Head
S7E21 / 16 Apr 1989
Wrap Around the Clock
S7E22 / 23 Apr 1989
Mr. Keaton Takes a Vacation
S7E23 / 07 May 1989Alex Doesn't Live Here Anymore
S7E24 / 14 May 1989
Meredith Baxter
Elyse Keaton
Michael Gross
Steven Keaton
Michael J. Fox
Alex P. Keaton
Justine Bateman
Mallory Keaton
Tina Yothers
Jennifer Keaton
