Looking For Lee Marvin on David Frost Show 1970 and 1972

I'm looking for the David Frost show with Lee Marvin as a guest on 2/11/1972. If you can provide me a video copy of this show or know where I can find it please send me a personal message.

The David Frost Show (10/16/1970)
Guests: Lee Marvin, Jeanne Moreau

The David Frost Show (02/11/1972)
Guests: Lee Marvin, George Segal, Karen Valentine