Mackenzie Phillips The Academy of Television Arts & Sciences Foundation Presents 02:26 Tabs Who talks about this person Pat Harrington, Jr. with Emerson CollegeView Interview Pat Harrington, Jr. on Mackenzie Phillips' personal problems during the run of One Day at a Time 03:47 Rita RiggsView Interview Rita Riggs on costuming Valerie Bertinelli and Mackenzie Phillips as "Barbara and Julie Cooper" on One Day at a Time, and on the process of costuming on a regular series 05:16