Okay, don't make fun of me here, but I LOVE 90210 and I watch the reruns EVERY DAY!!!
In an episode that was on earlier this week, they had a shot where someone walked through one of the common areas on campus, and there was a guy wearing a shirt with Delta Sig letters! I just thought that was cool that they actually featured a real fraternity and not a fictional one like KEG or Alpha Omega or Gamma Chi.