The Old-School Sci-Fi Typography
Each one is crafted as a futuristic design. Even though each one has "star" in it, they manage to keep their identity autonomous. And yes, they did love their yellow but at least they actually crafted a new font. These logos are decades years old they're still being used today.
The New-School Sci-Fi Typography
It's somewhat ironic. Here we have some of the most groundbreaking shows ever produced (at least in terms of production value) and they're using off the shelf fonts like Impact and Arial. Again, color remains a constant between properties but now the go-to color is silver. If their are any graphic designers out there please help out these nascent franchises get some new design. 
