The new Batgirl (secretly Commissioner Gordon's daugther, Barbara) was created by DC Comics editor Julie Schwartz and artist Carmine Infantino at the request of the show's producer, William Dozier, for its third season. Dozier envisioned Batgirl in her own spin-off series, a plan that never came to be.
The failure of the spin-off series to materialize doesn't change the fact that version of Batgirl remains the coolest version. Within the next month or so, I'll be reviewing the book reprinting her comic book adventures from the 1960s and 1970s, but in the meantime, here are some recent portrayals of her.
For more pictures from the classic Batman television show, check out this post at Cinema Steve.