Robert Comsol wrote:
I had always preferred the "warm" cinematography of the first and second season.
By Season Three the "colder" cinematography gave the studio set a rather sterile touch and the polyester costumes added to this impression, IMHO.
Jerry Finnerman left the show, that's what you're seeing. His assistant Al Francis got promoted, largely because all the better-qualified DPs were unavailable. Francis was okay but not an accomplished artist by any means.