One Day at a Time One Day at a Time is an old-school sitcom in the best way possible. It centers on an Army veteran named Penelope (Justina Machado) and her day-to-day family life, but the show does an exquisite job of weaving in social issues like coming out, dealing with PTSD, and the threat of deportation. Add in a star turn from the legendary Rita Moreno as a proud, sexually active 70-something, and you have a comedy with heart and a whole lot to say. Watch it now. Image Source: Everett Collection