Starring: Katie Cassidy, David Ramsey, Stephen Amell, Colin Donnell, Emily Bett Rickards
Darkness on the Edge of Town - S1-E22
Character mistake: At one point Felicity says, "There's at least a teraflop of data to go through." Felicity is a computer genius, so she should know that a teraflop is a measurement of processing power, not data storage. She should have said "terabyte."
Lone Gunmen - S1-E3
Oliver Queen: I'm having some trouble with my computer and they told me you were the person to come and see. I was at my coffeeshop surfing the web and I spilt a latte on it.
Felicity Smoak: Really?
Oliver Queen: Yeah.
Felicity Smoak: Because these look like bulletholes.
Oliver Queen: My coffeeshop is in a bad neighbourhood.