It may not seem like it on the surface, but Entourage and Curb Your Enthusiasm – both HBO series – have more in common than one might think. Both shows are about the ongoing relationships among their creators, the people who depend on them and Hollywood. Both have a rotating parade of guest stars, usually playing themselves. And although Vinnie Chase is probably more distant a stand-in for Mark Wahlberg than “Larry David” is for Larry David, both characters spend a whole lot of time hanging out with their managers. One of the big differences between the two shows, though, is that Curb made it on the air four years before Entourage.