DVR alert: PBS highlights TV pioneers

For the last two seasons, PBS' Pioneers of Television series has served as a fun "Where are they now?"-type look at dozens of TV icons.

This week, the show returns with four new episodes of interviews, clips and never-before-seen photos. Each installment covers a particular genre of TV, from prime-time soaps to superheroes.

Tuesday's season premiere focuses on "funny ladies," and the show certainly...