How do I contact Jackie Gleason's estate to license a clip from the
Honeymooners for a TV commercial?

I don't want to deprive a researcher, but I had to license a
"Honeymooners" photograph last year, so have the current contact info.
 For Estate of Jackie Gleason: Geraldine Chutuk.  360 378 5872 Fax &
Phone. PO Box 2138, Friday Harbor, Washington 98250.  For "The
Honeymooners" clearance issues, contact CBS Business Affairs Dept.,
CBS Television Network, in their LA office.  I don't know that I
should post the person's name here, but this steers you where you need
to go.