Seated in-between this installment's eclectic guests, Janis Joplin and Raquel Welch, Dick Cavett wryly comments they were all once roommates in college. This glorious chat-session exemplifies how low TV talk shows have sunk in the last two decades--and how we, as the TV-viewing public, have been shortchanged in terms of quality, smart humor, and interesting conversation. Joplin, decked out in a frilly thrift-store ensemble, is quiet and contemplative, an intense listener who had savvy, though soft-spoken opinions. For instance, as Welch is attempting to sell her stillborn controversial sex-change comedy "Myra Breckinridge", Joplin tells her, "You looked good in it...but the movie's too choppy. I couldn't follow it...it kept changing." Welch, far from being rattled, winks and tells Janis, "Well the whole movie's about change." And the audience is hip enough to be in on the joke.