The other Nancy Drew?

Does anyone remember Janet Louise Johnson -- y'know, the other Nancy Drew? She took over the role from Pamela Sue Martin back when the Hardy Boys/Nancy Drew Mysteries was on the air.

I didn't get to watch many of those episodes, though. Our family only had one TV set back then, and my mother insisted on using it to watch this incredibly stupid family drama. At least, that's how it looked to my prepubescent eyes. Personally, I prefer mysteries, as I like a good mental challenge.

And no, it had nothing to do with the fact that the two Nancy Drews were both cute. In fact, I never even noticed that until many years afterwards.