Btw although they never showed his wife on Columbo, I believe there was a later series called Mrs. Columbo, who also was a crime fighter of some sort . And they probably never showed 'Mr.' Columbo on that show either.
Yes, there was a short-lived TV show called "Mrs. Columbo". It starred Kate Mulgrew as Kate Columbo. As far as I know, Peter Falk never appeared on the show.