There were 22 episodes made of Not Only...But Also, but thanks to the unfortunately-common practice of erasing tapes, only eight remain. They were released on on VHS and now DVD under the wonderful title of The Best of What's Left of Not Only...But Also. Fortunately, the audio of many of the sketches survive on two great albums, Not Only Peter Cook...But Also Dudley Moore, and its follow-up, Once Moore with Cook.
But this, for all your foodies out there, is about a new restaurant the good fellow has opened.