Helga referring to her parents by their first names (Miriam and Bob).
One detail I like about the show is that Helga rarely calls her parents "mom" and "dad", and instead frequently refers to them by their names.
It's a small but subtle detail that's very smart on the part of the writers. Most people almost never refer to their parents by their actual names at all. It's clearly meant to show that Helga has a huge disconnect with her parents and doesn't respect them.