Conversation so far:
What tv station aired this show?
An American version was on NBC, initially as a pilot episode.
Who starred in this show?
The pilot featured Henry Fonda and Henry Morgan.
What actors were on the series?
The recurring cast included Frost, Morgan, Buck Henry and Alan Alda.
Were there any other well known actors in the cast?
regular contributors included Gloria Steinem, William F.
Brown, Tom Lehrer and Calvin Trillin.
what happened in 1985?
On April 21, 1985 in the United States, the ABC network aired That Was The Week That Was as a special.
Was it a success?
CANNOTANSWER.
Are there any other interesting aspects about this article?
The American version is largely a lost program, although the pilot survives and was donated to the Library of Congress by a collector.

Question: Was it cancelled?
Self-contained rewrite: Was the American version of "ThatWasTheWeekThatWas" cancelled?