Since it's not very easy to find on the Lucy-Desi museum site,
I wanted to put this here. It is directly referencing the page from the Lucy-Desi Museum site.
Credit to the Lucy-Desi Museum website.

Bob Newhart May 26, 1996	Shelley Berman May 25, 1997	Bill Dana May 25, 1997	Sam Denoff May 25, 1997	Louis Nye May 25, 1997	Tom Poston May 25, 1997	Ronnie Schell May 25, 1997
Ray Romano May 23, 1998	Marco Rizo May 24, 1998	Rich Little May 29, 1999	Keith Thibodeaux Aug. 7, 1999	Carol Channing May 28, 2000	Isabel Sanford Aug. 5, 2000	Melody Thomas Scott Aug. 6, 2000
Mickey Rooney May 27, 2001	Ricci, Desi & Billy Aug. 4, 2001	Lucie Arnaz & Desi Arnaz, Jr. Aug. 5, 2001	Richard Simmons Aug. 4, 2002	Betsy Palmer May 24, 2003	Carole Cook Aug. 9, 2003	Jim Bailey May 29, 2004
Bob Schiller Aug. 7, 2004	Barbara Eden May 29, 2005	Melody Thomas Scott Aug. 6, 2005	Marjorie Lord May 27, 2006