Watching the entire Ironside series episode 1 to 295 is a fun experience for many reasons: The incredible guest actors, many of whom were huge stars in the 1950's; the social issues of the times that were often featured; and seeing the 60's change into the 70's in the hair styles, clothes, cars, and language!
Two of the three are evident in the first episode of season 7. The hair is a little longer (especially on Don Galloway and Don Mitchell!), more 70's moustaches, and wow, those clothes! And Dorothy Malone is featured, Academy Award winner from the film "Written on the Wind."
The plot is interesting and predictable at the same time. Interesting because it is mysterious how Malone knows intimate details of Ironside's life. Predictable because as soon as William Schallert shows up in disguise, you know it's William Schallert! How could you not! Schallert was one of the most recognizable character actors - by voice more than anything - in TV history! It's fun just to see his face, or hear his voice, in anything.
He contributes mightily to the Ironside/Star Trek connection by being the famous Klingon spy in the classic episode "Trouble with Tribbles." He also appeared in Star Trek: Deep Space Nine. But what a resume! Shows such as Thriller, Twilight Zone, Alfred Hitchcock, and of course, Perry Mason.
Watch, also, for former NFL QB Joe Kapp to appear as a goofy truck dispatcher.
There's a nice, wordless scene where Ed investigates the house, and discovers the clue that cracks open the whole case.