Conversation so far:
When did Ruth Buzzi appear on Rowan & Martin's Laugh-In?
Ruth Buzzi appeared in the pilot special of Rowan & Martin's Laugh-In from 1967.
Did Ruth Buzzi start appearing on Rowan & Martin's Laugh-In with any other known actor?
Ruth Buzzi, Judy Carne, Henry Gibson, Larry Hovis, Arte Johnson, Barbara Feldon and Jo Anne Worley appeared in the pilot special of Rowan & Martin's Laugh-In from 1967.
Are there any other interesting aspects about the Ruth Buzzi article besides her appearance in Rowan & Martin's Laugh-In?
Ruth Buzzi's most famous character was dowdy spinster Gladys Ormphby, clad in drab brown with her bun hairdo covered by a visible hairnet knotted in the middle of her forehead.
Did Ruth Buzzi receive any awards for her work?
Ruth Buzzi is best known for her performances on Rowan & Martin's Laugh-In from 1968 to 1973, for which she won a Golden Globe Award.

Question: When did that show air?
Self-contained rewrite: When did the show Rowan & Martin's Laugh-In air?