I have this full show on a disc coming from a VHS tape, but in bad shape. ‘The Best of The Dean Martin Variety Show’ from Time Life contains parts of this show. I substituted the corresponding parts so that the full show largely has a better quality, though there are still parts in bad condition because they haven't been released officially on DVD (yet).
Hope you enjoy the show!

The Dean Martin Show (November 23, 1972)
Starring: Lynn Anderson, Jack Benny, Kay Medford, Lou Jacobi, Dom DeLuise, Joy Hawkins, Rodney Dangerfield and Nipsey Russel.