The Emmy-winning actor, writer and director Pamela Adlon recently participated in an episode of the PBS series “Finding Your Roots,” which unearthed some intense stories based on her genealogy. And like so much else in her life, that experience has been incorporated (albeit slightly fictionalized) into the newest season of her show “Better Things” on FX, recreated right down to the “please turn the page” invocation that has become almost a catchphrase for “Finding Your Roots.” How did that decision come about? “Early in the pandemic, (the producers of “Finding Your Roots”) contacted me and sai…