I realize that the entertainment industry thinks it is cute to use the letter sigma (Σ) as an E for its Greek themed movies and shows (we all remember the poster for My Big Fat Greek Wedding). Now ABC Family has a new show about fraternities and sororities called "Greek", and they've done it again.
Honestly, to people that know Greek, it just looks ignorant and stupid. And it is perhaps a bit insulting. Greek does have its own E, it is called epsilon (Ε). Sure, it doesn't look very notably Greek, but it is better than having the word "Grssk" in your title.