20 October
A list of events which occurred on the 20th of October.

 is born.

Ralph Maurer is born.

Michael Dunn is born.

Robert Costanzo is born.

Daamen Krall is born.

David F. Tepool is born.

Peter Morwood is born.

 airs.
Second day of filming on .

 airs.
Fourth day of filming on . Arena scenes are filmed today.

Eric Spencer Kagan is born.

 airs.
The Thirty-Seventh UK Story Arc continues in Valiant & TV21 #108 with the second of twelve installments.

Sunil Malhotra is born.

Sam Witwer is born.
Rough first draft script for "In Thy Image" (which evolved into ) is submitted.

Fifty-fourth day of filming on .

 premieres in France.

Forty-eighth day of filming on .

Second day of filming on . Patrick Stewart's first scenes as Dixon Hill are filmed today.

Eighth day of filming on .
Sixth day of filming on .

Musical score for  is recorded.
 premieres in the UK and Ireland.

Second day of filming on .

Eighth and final day of filming on .
First day of filming on .
Thirty-third day of filming on . 
Second unit filming for .

Sixth day of filming on .
Simon & Schuster releases the Star Trek Emissary Gift Set in the USA.

 airs.
Eighth and final day of filming on .
Eighth and final day of filming on .
First day of filming on .
CIC Video releases The Original Series volume 3.4, Star Trek - The Movies, Deep Space Nine volume 5.13 and Voyager volume 3.13 on VHS in the UK. 

 airs.
Fifth day of filming on .

Third day of filming on .
Arthur Tovey dies.

Seventh day of filming on .
Final draft script for  is submitted.

Sixth day of filming on .

Jane Wyatt dies.

Remastered version of  airs.

Pocket ENT The Romulan War trade paperback, Beneath the Raptor's Wing, by Michael A. Martin is released.

Nick Dimitri dies.

Unknown year
Jason Deline is born.

de:20. Oktober
es:20 octubre
it:20 ottobre
nl:20 oktober
pt:20 de outubro
sv:20 oktober