As one of the six videotaped TWZ episodes, "Twenty-two" certainly has a different look from the filmed versions--a definite retro feel. It is worth remembering that Sterling cut his teeth in early fifties TV (the "Golden Age") with its multi-camera staging and primitive kine-scope recording, as did director Jack Smight.
TV production of that era had a certain necessary art to it, created on- the-fly and halfway between filmed stage drama and true cinema, an acquired taste, to be sure. This episode had many lovely two-shots and a few absolutely gorgeous three-shots that are under-appreciated today. I have much the same feeling about the durable Marilyn Monroe lookalike Barbara Nicols, who starred in the episode. And then there was morgue nurse Arlene Martel...
The choice of videotape and other production shortcuts were almost certainly dictated by financial constraints, but I prefer to consider this episode a case of making lemonade.