This is a rare video of What's My Line in 1965 with Lucille Ball as the mystery guest. It was the last of all 6 appearances.
Notice her expression when being asked if she was married to an entertainer just as well known as her. That momentarily sadness just makes me so sad. It's obvious that she thought of Desi Arnaz first, then Gary Morton, then answered no. When the same question was asked some 10 years ago, her answer was yes.
Rest in peace, Lucy. You deserve to be happy and I hope you are now.